mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
synced 2025-12-08 06:37:44 +00:00
Merge pull request #29 from ParticulateFlow/feature/cherry_pick_PUBLIC
Feature/cherry pick public
This commit is contained in:
Daniel
@ -81,6 +81,7 @@ cfdemCloud::cfdemCloud
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solveFlow_(true),
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verbose_(false),
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ignore_(false),
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allowCFDsubTimestep_(true),
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limitDEMForces_(false),
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modelType_(couplingProperties_.lookup("modelType")),
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positions_(NULL),
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@ -251,17 +252,6 @@ cfdemCloud::cfdemCloud
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else
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Info << "ignoring ddt(voidfraction)" << endl;
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forceModel_ = new autoPtr<forceModel>[nrForceModels()];
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for (int i=0;i<nrForceModels();i++)
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{
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forceModel_[i] = forceModel::New
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(
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couplingProperties_,
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*this,
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forceModels_[i]
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);
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}
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momCoupleModel_ = new autoPtr<momCoupleModel>[momCoupleModels_.size()];
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for (int i=0;i<momCoupleModels_.size();i++)
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{
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@ -273,6 +263,17 @@ cfdemCloud::cfdemCloud
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);
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}
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forceModel_ = new autoPtr<forceModel>[nrForceModels()];
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for (int i=0;i<nrForceModels();i++)
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{
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forceModel_[i] = forceModel::New
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(
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couplingProperties_,
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*this,
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forceModels_[i]
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);
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}
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// run liggghts commands from cfdem
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liggghtsCommand_ = new autoPtr<liggghtsCommandModel>[liggghtsCommandModelList_.size()];
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for (int i=0;i<liggghtsCommandModelList_.size();i++)
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@ -324,7 +325,14 @@ cfdemCloud::cfdemCloud
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{
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checkPeriodicCells_ = true;
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}
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else if (nPatchesCyclic > 0 && nPatchesNonCyclic > 0)
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//hard set checkperiodic cells if wished
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if(this->couplingProperties().found("checkPeriodicCells"))
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{
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checkPeriodicCells_ = couplingProperties().lookupOrDefault<Switch>("checkPeriodicCells", checkPeriodicCells_);
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}
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if (nPatchesCyclic > 0 && nPatchesNonCyclic > 0)
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{
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if (verbose_) Info << "nPatchesNonCyclic=" << nPatchesNonCyclic << ", nPatchesCyclic=" << nPatchesCyclic << endl;
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Warning << "Periodic handing is disabled because the domain is not fully periodic!\n" << endl;
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@ -612,6 +620,10 @@ bool cfdemCloud::evolve
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// IMPLICIT FORCE CONTRIBUTION AND SOLVER USE EXACTLY THE SAME AVERAGED
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// QUANTITIES AT THE GRID!
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Info << "\n timeStepFraction() = " << dataExchangeM().timeStepFraction() << endl;
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if(dataExchangeM().timeStepFraction() > 1.0000001)
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{
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FatalError << "cfdemCloud::dataExchangeM().timeStepFraction()>1: Do not do this, since dangerous. This might be due to the fact that you used a adjustable CFD time step. Please use a fixed CFD time step." << abort(FatalError);
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}
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clockM().start(24,"interpolateEulerFields");
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// update voidFractionField
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@ -92,6 +92,8 @@ protected:
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bool ignore_;
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bool allowCFDsubTimestep_;
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bool limitDEMForces_;
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scalar maxDEMForce_;
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@ -226,6 +228,10 @@ public:
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// public Member Functions
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// Access
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bool allowCFDsubTimestep() { return allowCFDsubTimestep_; }
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void setAllowCFDsubTimestep(bool b) { allowCFDsubTimestep_ = b; }
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void checkCG(bool);
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void setPos(double **&);
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@ -328,20 +328,12 @@ void averagingModel::undoWeightFields(double**const& mask) const
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tmp<volVectorField> averagingModel::UsInterp() const
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{
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if (particleCloud_.dataExchangeM().couplingStep() > 1)
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{
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return tmp<volVectorField>
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(
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new volVectorField("Us_averagingModel", (1. - particleCloud_.dataExchangeM().timeStepFraction()) * UsPrev_ + particleCloud_.dataExchangeM().timeStepFraction() * UsNext_)
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);
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}
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else
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{
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return tmp<volVectorField>
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(
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new volVectorField("Us_averagingModel", UsNext_)
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);
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}
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const scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
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return tmp<volVectorField>
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(
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new volVectorField("Us_averagingModel", (1. - tsf) * UsPrev_ + tsf * UsNext_)
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);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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@ -209,12 +209,7 @@ bool dataExchangeModel::couple(int i) const
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scalar dataExchangeModel::timeStepFraction() const
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{
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//return fraction between previous coupling TS and actual TS
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//scalar DEMtime = DEMts_ * couplingInterval_;
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//scalar frac = ( ( particleCloud_.mesh().time().value()-particleCloud_.mesh().time().startTime().value() ) - (couplingStep_) * DEMtime) / DEMtime; //Chr 05.03.2013
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scalar frac = ( particleCloud_.mesh().time().value()-particleCloud_.mesh().time().startTime().value() - couplingStep_ * couplingTime() ) / couplingTime();
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if (frac < 1e-4) frac = 1.;
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return frac;
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return ( particleCloud_.mesh().time().value()-particleCloud_.mesh().time().startTime().value() - (couplingStep_-1) * couplingTime() ) / couplingTime();
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}
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int dataExchangeModel::getNumberOfParticles() const
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@ -198,22 +198,29 @@ public:
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inline void checkTSsize() const
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{
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if(particleCloud_.mesh().time().deltaT().value() > couplingInterval_ * DEMts_ + SMALL)
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if (particleCloud_.mesh().time().deltaT().value() > couplingInterval_ * DEMts_ + SMALL)
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{
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Info << "particleCloud_.mesh().time().deltaT().value() = " << particleCloud_.mesh().time().deltaT().value() << endl;
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Info << "couplingInterval_ = " << couplingInterval_ << endl;
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Info << "DEMts_ = " << DEMts_ << endl;
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FatalError<<"\nError - TS bigger than coupling interval!\n"<< abort(FatalError);
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FatalError << "\nError - CFD time-step bigger than coupling time (= DEM time step * coupling interval)!\n" << abort(FatalError);
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}
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if (std::fabs((round(couplingTime()/particleCloud_.mesh().time().deltaT().value())*particleCloud_.mesh().time().deltaT().value())-couplingTime()) > SMALL)
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{
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Info << "particleCloud_.mesh().time().deltaT().value() = " << particleCloud_.mesh().time().deltaT().value() << endl;
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Info << "couplingInterval_ = " << couplingInterval_ << endl;
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Info << "DEMts_ = " << DEMts_ << endl;
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Warning << "\nWarning - Coupling time (= DEM time step * coupling interval) is not a multiple of CFD time-step!\n" << endl;
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}
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if (!particleCloud_.allowCFDsubTimestep())
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if (particleCloud_.mesh().time().deltaT().value() < couplingInterval_ * DEMts_ + SMALL)
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FatalError << "\nYour models require: CFD time-step = coupling interval (= DEM time step * coupling interval)! \n" << abort(FatalError);
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// warn if sub-TS
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if (particleCloud_.mesh().time().deltaT().value() < couplingTime() - SMALL)
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Warning << "You are using sub-time-steps (i.e. CFD TS < coupling time)! Check your settings properly." << endl;
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}
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/*inline bool checkExactTiming() const
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{
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return false;
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}*/
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//void checkNClumpTypes() const {};
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inline void readDEMtsfromDict(dictionary& propsDict)
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{
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DEMts_ = readScalar(propsDict.lookup("DEMts"));
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@ -222,10 +229,8 @@ public:
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inline bool doCoupleNow() const
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{
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if (particleCloud_.mesh().time().value()-particleCloud_.mesh().time().startTime().value()
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- ((1+couplingStep_)*(DEMts_*couplingInterval_))
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+ 1e-10 > 0) // Chr 27.03.2013 : first coupling after DEMts_*couplingInterval_
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// > particleCloud_.mesh().time().deltaT().value()/2) // Chr 27.03.2013
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if (particleCloud_.mesh().time().value()-particleCloud_.mesh().time().startTime().value()-SMALL
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> couplingStep_*DEMts_*couplingInterval_)
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{
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return true;
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}
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@ -104,6 +104,13 @@ void liggghtsCommandModel::checkTimeMode(dictionary& propsDict)
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}
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}
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}
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if(verbose_){
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Info << "runFirst = " << runFirst_ << endl;
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Info << "runLast = " << runLast_ << endl;
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Info << "runEveryCouplingStep = " << runEveryCouplingStep_ << endl;
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Info << "runEveryWriteStep = " << runEveryWriteStep_ << endl;
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}
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}
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void liggghtsCommandModel::checkTimeSettings(const dictionary& propsDict)
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@ -112,11 +119,12 @@ void liggghtsCommandModel::checkTimeSettings(const dictionary& propsDict)
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{
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scalar DEMts = particleCloud_.dataExchangeM().DEMts();
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scalar couplingInterval = particleCloud_.dataExchangeM().couplingInterval();
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scalar simStartTime = particleCloud_.mesh().time().startTime().value();
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if(runLast_) // last run
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{
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// read time options from subdict
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endTime_ = particleCloud_.mesh().time().endTime().value()-particleCloud_.mesh().time().startTime().value();
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endTime_ = particleCloud_.mesh().time().endTime().value()-simStartTime;
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startTime_ = endTime_;
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timeInterval_ = -1;
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@ -136,9 +144,9 @@ void liggghtsCommandModel::checkTimeSettings(const dictionary& propsDict)
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// calculate coupling times
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// if this makes troubles try floor((startTime_+SMALL)/.. as above
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firstCouplingStep_ = floor(startTime_/DEMts/couplingInterval)+1;
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lastCouplingStep_ = floor(endTime_/DEMts/couplingInterval)+1;
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couplingStepInterval_ = floor(timeInterval_/DEMts/couplingInterval)+1;
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firstCouplingStep_ = floor((startTime_+SMALL-simStartTime)/DEMts/couplingInterval);
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lastCouplingStep_ = floor((endTime_+SMALL-simStartTime)/DEMts/couplingInterval);
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couplingStepInterval_ = floor(timeInterval_+SMALL/DEMts/couplingInterval);
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}
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else //runEveryCouplingStep or writeStep
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{
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@ -108,9 +108,13 @@ explicitCouple::~explicitCouple()
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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tmp<volVectorField> explicitCouple::expMomSource() const
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{
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scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
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const scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
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if (1. - tsf < 1e-4) //tsf==1
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// calc Ksl
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// update KslNext in first subTS
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// NOTE: without following if we could update f every subTS (based on current values) and use this value
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if(tsf < particleCloud_.mesh().time().deltaT().value()/particleCloud_.dataExchangeM().couplingTime() + 0.000001 )
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{
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// calc fNext
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forAll(fNext_,cellI)
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@ -124,18 +128,12 @@ tmp<volVectorField> explicitCouple::expMomSource() const
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if (magF > fLimit_[i]) fNext_[cellI][i] *= fLimit_[i]/magF;
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}
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}
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return tmp<volVectorField>
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(
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new volVectorField("f_explicitCouple", fPrev_)
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);
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}
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else
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{
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return tmp<volVectorField>
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(
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new volVectorField("f_explicitCouple", (1. - tsf) * fPrev_ + tsf * fNext_)
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);
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}
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return tmp<volVectorField>
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(
|
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new volVectorField("f_explicitCouple", (1. - tsf) * fPrev_ + tsf * fNext_)
|
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);
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}
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void explicitCouple::resetMomSourceField() const
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@ -122,11 +122,13 @@ implicitCouple::~implicitCouple()
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tmp<volScalarField> implicitCouple::impMomSource() const
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{
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scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
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const scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
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|
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// calc Ksl
|
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if (1. - tsf < 1e-4) //tsf==1
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// update KslNext in first subTS
|
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// NOTE: without following if we could update Ksl every subTS (based on current values) and use this value
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if(tsf < particleCloud_.mesh().time().deltaT().value()/particleCloud_.dataExchangeM().couplingTime() + 0.000001 )
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{
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scalar Ur;
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@ -136,6 +138,8 @@ tmp<volScalarField> implicitCouple::impMomSource() const
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if (Ur > SMALL && alpha_[cellI] < maxAlpha_) //momentum exchange switched off if alpha too big
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{
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// NOTE: impParticleForces() are calculated at coupling step based on current values
|
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// therefore the use of Next fields in forceM and here is recommended
|
||||
KslNext_[cellI] = mag(particleCloud_.forceM(0).impParticleForces()[cellI])
|
||||
/ Ur
|
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/ particleCloud_.mesh().V()[cellI];
|
||||
@ -145,18 +149,12 @@ tmp<volScalarField> implicitCouple::impMomSource() const
|
||||
// limiter
|
||||
if (KslNext_[cellI] > KslLimit_) KslNext_[cellI] = KslLimit_;
|
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}
|
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return tmp<volScalarField>
|
||||
(
|
||||
new volScalarField("Ksl_implicitCouple", KslPrev_)
|
||||
);
|
||||
}
|
||||
else
|
||||
{
|
||||
return tmp<volScalarField>
|
||||
(
|
||||
new volScalarField("Ksl_implicitCouple", (1. - tsf) * KslPrev_ + tsf * KslNext_)
|
||||
);
|
||||
}
|
||||
|
||||
return tmp<volScalarField>
|
||||
(
|
||||
new volScalarField("Ksl_implicitCouple", (1. - tsf) * KslPrev_ + tsf * KslNext_)
|
||||
);
|
||||
}
|
||||
|
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void implicitCouple::resetMomSourceField() const
|
||||
|
||||
@ -71,7 +71,7 @@ SyamlalThermCond::SyamlalThermCond
|
||||
{
|
||||
if (wallQFactor_.headerOk())
|
||||
{
|
||||
Info << "Found field for scaling wall heat flux.\n" << endl;
|
||||
Info << "Found field for scaling wall heat flux.\n" << endl;
|
||||
hasWallQFactor_ = true;
|
||||
}
|
||||
}
|
||||
@ -100,13 +100,14 @@ tmp<volScalarField> SyamlalThermCond::thermCond() const
|
||||
IOobject::NO_WRITE
|
||||
),
|
||||
voidfraction_.mesh(),
|
||||
dimensionedScalar("zero", dimensionSet(1,1,-3,-1,0,0,0), 0.0)
|
||||
dimensionedScalar("zero", dimensionSet(1,1,-3,-1,0,0,0), 0.0)
|
||||
)
|
||||
);
|
||||
|
||||
volScalarField& svf = tvf.ref();
|
||||
|
||||
svf = (1-sqrt(1-voidfraction_)) / (voidfraction_) * kf0_;
|
||||
|
||||
|
||||
svf = (1-sqrt(1-voidfraction_+SMALL)) / (voidfraction_) * kf0_;
|
||||
|
||||
// if a wallQFactor field is present, use it to scale heat transport through a patch
|
||||
if (hasWallQFactor_)
|
||||
{
|
||||
@ -114,7 +115,7 @@ tmp<volScalarField> SyamlalThermCond::thermCond() const
|
||||
forAll(wallQFactor_.boundaryField(), patchi)
|
||||
svf.boundaryFieldRef()[patchi] *= wallQFactor_.boundaryField()[patchi];
|
||||
}
|
||||
|
||||
|
||||
return tvf;
|
||||
}
|
||||
|
||||
|
||||
@ -102,22 +102,12 @@ voidFractionModel::~voidFractionModel()
|
||||
// * * * * * * * * * * * * * * public Member Functions * * * * * * * * * * * * * //
|
||||
tmp<volScalarField> voidFractionModel::voidFractionInterp() const
|
||||
{
|
||||
scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
|
||||
const scalar tsf = particleCloud_.dataExchangeM().timeStepFraction();
|
||||
|
||||
if (1. - tsf < 1e-4 && particleCloud_.dataExchangeM().couplingStep() > 1) //tsf==1
|
||||
{
|
||||
return tmp<volScalarField>
|
||||
(
|
||||
new volScalarField("alpha_voidFractionModel", voidfractionPrev_)
|
||||
);
|
||||
}
|
||||
else
|
||||
{
|
||||
return tmp<volScalarField>
|
||||
(
|
||||
new volScalarField("alpha_voidFractionModel", (1. - tsf) * voidfractionPrev_ + tsf * voidfractionNext_)
|
||||
);
|
||||
}
|
||||
return tmp<volScalarField>
|
||||
(
|
||||
new volScalarField("alpha_voidFractionModel", (1. - tsf) * voidfractionPrev_ + tsf * voidfractionNext_)
|
||||
);
|
||||
}
|
||||
|
||||
void voidFractionModel::resetVoidFractions() const
|
||||
|
||||
@ -1,65 +1,64 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
echo both
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
# Fill granular particles into a cylinder
|
||||
echo both
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
|
||||
boundary m m m
|
||||
newton off
|
||||
boundary m m m
|
||||
newton off
|
||||
|
||||
units si
|
||||
units si
|
||||
|
||||
region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
|
||||
create_box 1 reg
|
||||
region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
|
||||
create_box 1 reg
|
||||
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
|
||||
|
||||
#Material properties required for new pair styles
|
||||
#material properties required for granular pair styles
|
||||
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e6
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e6
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
#pair style
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
#timestep, gravity
|
||||
timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
#walls
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.0138 0. 0.
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.0138 0. 0.
|
||||
|
||||
#cfd coupling
|
||||
#fix cfd all couple/cfd
|
||||
#fix cfd all couple/cfd
|
||||
|
||||
#particle insertion
|
||||
region bc cylinder z 0.0 0.0 0.012 0.02 0.03 units box
|
||||
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 200 radius constant 0.001
|
||||
fix pdd1 all particledistribution/discrete 1. 1 pts1 1.0
|
||||
region bc cylinder z 0.0 0.0 0.012 0.02 0.03 units box
|
||||
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 200 radius constant 0.001
|
||||
fix pdd1 all particledistribution/discrete 1. 1 pts1 1.0
|
||||
|
||||
fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region 1000 region bc
|
||||
fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region 1000 region bc
|
||||
|
||||
#apply nve integration to all particles that are inserted as single particles
|
||||
fix integr all nve/sphere
|
||||
fix integr all nve/sphere
|
||||
|
||||
|
||||
#screen output
|
||||
compute 1 all erotate/sphere
|
||||
thermo_style custom step atoms ke c_1 vol
|
||||
thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
compute rke all erotate/sphere
|
||||
thermo_style custom step atoms ke c_rke vol
|
||||
thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
#insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 1000 post/dump.liggghts_init id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
run 1
|
||||
dump dmp all custom 1000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
|
||||
run 3000 upto
|
||||
#write_restart liggghts.restart
|
||||
run 3000 upto
|
||||
|
||||
@ -73,8 +73,8 @@ functions
|
||||
fields ( particleForces );
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -73,8 +73,8 @@ functions
|
||||
fields ( particleForces );
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -19,8 +19,7 @@ neighbor 0.3 bin
|
||||
neigh_modify delay 0 binsize 0.01
|
||||
|
||||
|
||||
# Material properties required for new pair styles
|
||||
|
||||
# Material properties required for granular pair styles
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e7
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.9
|
||||
@ -49,8 +48,8 @@ fix cfd2 all couple/cfd/force
|
||||
|
||||
|
||||
# create single partciles
|
||||
create_atoms 1 single .5 .5 3.5 units box
|
||||
create_atoms 1 single .5 .5 3.16 units box
|
||||
create_atoms 1 single 0.5 0.5 3.5 units box
|
||||
create_atoms 1 single 0.5 0.5 3.16 units box
|
||||
set atom 1 diameter 0.167 density 1.5 vx 0 vy 0 vz 0
|
||||
set atom 2 diameter 0.167 density 1.5 vx 0 vy 0 vz 0
|
||||
|
||||
@ -85,7 +84,7 @@ thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
# insert the first particles so that dump is not empty
|
||||
dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
|
||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||
#node : f_couple_cfd[6]
|
||||
|
||||
@ -90,8 +90,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction voidfractionNext voidfractionPrev);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
}
|
||||
// ************************************************************************* //
|
||||
|
||||
@ -90,8 +90,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -13,67 +13,67 @@ variable nPorg equal 71000
|
||||
variable nPscal equal ${nPorg}/(${cg}*${cg}*${cg})
|
||||
#######################################################
|
||||
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
coarsegraining ${cg}
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
coarsegraining ${cg}
|
||||
|
||||
boundary m m m
|
||||
newton off
|
||||
boundary m m m
|
||||
newton off
|
||||
|
||||
units si
|
||||
processors 2 2 1
|
||||
units si
|
||||
processors 2 2 1
|
||||
|
||||
region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
|
||||
create_box 1 reg
|
||||
region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
|
||||
create_box 1 reg
|
||||
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
|
||||
|
||||
#Material properties required for new pair styles
|
||||
#Material properties required for granular pair styles
|
||||
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e6
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e6
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
#pair style
|
||||
pair_style gran model hertz tangential history #Hertzian without cohesion
|
||||
pair_coeff * *
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
#timestep, gravity
|
||||
timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
#walls
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
||||
|
||||
#particle distributions and insertion
|
||||
region bc cylinder z 0.0 0.0 0.012 0. 0.055 units box
|
||||
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 7000 radius constant ${r0}
|
||||
fix pdd1 all particledistribution/discrete 1. 1 pts1 1.0
|
||||
region bc cylinder z 0.0 0.0 0.012 0. 0.055 units box
|
||||
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 7000 radius constant ${r0}
|
||||
fix pdd1 all particledistribution/discrete 1 1 pts1 1.0
|
||||
|
||||
fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region ${nPscal} region bc
|
||||
fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region ${nPscal} region bc
|
||||
|
||||
#apply nve integration to all particles that are inserted as single particles
|
||||
fix integr all nve/sphere
|
||||
fix integr all nve/sphere
|
||||
|
||||
#screen output
|
||||
compute 1 all erotate/sphere
|
||||
thermo_style custom step atoms ke c_1 vol
|
||||
thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
compute rke all erotate/sphere
|
||||
thermo_style custom step atoms ke c_rke vol
|
||||
thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
#insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
run 1
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||
#node : f_couple_cfd[6]
|
||||
#cell id : f_couple_cfd[7]
|
||||
|
||||
run 10000 upto
|
||||
write_restart ./post/restart/liggghts.restart_coarseGraining_${cg}
|
||||
run 10000 upto
|
||||
write_restart ./post/restart/liggghts.restart_coarseGraining_${cg}
|
||||
|
||||
@ -14,70 +14,69 @@ variable nPorg equal 71000
|
||||
variable nPscal equal ${nPorg}/(${cg}*${cg}*${cg})
|
||||
#######################################################
|
||||
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
coarsegraining ${cg}
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
coarsegraining ${cg}
|
||||
|
||||
boundary m m m
|
||||
newton off
|
||||
boundary m m m
|
||||
newton off
|
||||
|
||||
units si
|
||||
processors 2 2 1
|
||||
units si
|
||||
processors 2 2 1
|
||||
|
||||
#read the restart file
|
||||
read_restart ../DEM/post/restart/liggghts.restart_coarseGraining_${cg}
|
||||
read_restart ../DEM/post/restart/liggghts.restart_coarseGraining_${cg}
|
||||
#_coarseGraining_${cg}
|
||||
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
|
||||
|
||||
#Material properties required for new pair styles
|
||||
#Material properties required for granular pair styles
|
||||
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e6
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
fix m1 all property/global youngsModulus peratomtype 5.e6
|
||||
fix m2 all property/global poissonsRatio peratomtype 0.45
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
#pair style
|
||||
pair_style gran model hertz tangential history #Hertzian without cohesion
|
||||
pair_coeff * *
|
||||
pair_style gran model hertz tangential history #Hertzian without cohesion
|
||||
pair_coeff * *
|
||||
|
||||
#timestep, gravity
|
||||
timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
#walls
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
||||
|
||||
|
||||
#cfd coupling
|
||||
fix cfd all couple/cfd couple_every 100 mpi
|
||||
fix cfd2 all couple/cfd/force #/implicit
|
||||
fix cfd all couple/cfd couple_every 100 mpi
|
||||
fix cfd2 all couple/cfd/force #/implicit
|
||||
|
||||
#apply nve integration to all particles that are inserted as single particles
|
||||
fix integr all nve/sphere
|
||||
fix integr all nve/sphere
|
||||
|
||||
#center of mass
|
||||
compute centerOfMass all com
|
||||
|
||||
#compute total dragforce
|
||||
#compute dragtotal all reduce sum f_dragforce[1] f_dragforce[2] f_dragforce[3]
|
||||
#compute dragtotal all reduce sum f_dragforce[1] f_dragforce[2] f_dragforce[3]
|
||||
|
||||
#screen output
|
||||
compute 1 all erotate/sphere
|
||||
thermo_style custom step atoms ke c_1 vol c_centerOfMass[3] #c_dragtotal[1] c_dragtotal[2] c_dragtotal[3]
|
||||
thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
compute rke all erotate/sphere
|
||||
thermo_style custom step atoms ke c_rke vol c_centerOfMass[3] #c_dragtotal[1] c_dragtotal[2] c_dragtotal[3]
|
||||
thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
#insert the first particles so that dump is not empty
|
||||
dump myDump all stl 1 post/dump_*.stl
|
||||
#run 1
|
||||
dump dmp all custom 1000 ../DEM/post/dump*.liggghts_restart id type type x y z vx vy vz fx fy fz radius #f_dragforce[1] f_dragforce[2] f_dragforce[3]
|
||||
undump myDump
|
||||
dump myDump all stl 1 post/dump_*.stl
|
||||
dump dmp all custom 1000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz radius
|
||||
undump myDump
|
||||
|
||||
run 1
|
||||
run 1
|
||||
|
||||
@ -89,8 +89,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction voidfractionNext voidfractionPrev);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -90,8 +90,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
echo both
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
||||
|
||||
# insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||
#node : f_couple_cfd[6]
|
||||
#cell id : f_couple_cfd[7]
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
log ../DEM/log.liggghts
|
||||
thermo_log ../DEM/post/thermo.txt
|
||||
|
||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -34,8 +34,8 @@ timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
# walls
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
||||
|
||||
# change the particles density
|
||||
@ -63,6 +63,6 @@ thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
|
||||
run 1
|
||||
|
||||
@ -186,8 +186,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
}
|
||||
// ************************************************************************* //
|
||||
|
||||
@ -90,8 +90,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
echo both
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
||||
|
||||
# insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||
#node : f_couple_cfd[6]
|
||||
#cell id : f_couple_cfd[7]
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
log ../DEM/log.liggghts
|
||||
thermo_log ../DEM/post/thermo.txt
|
||||
|
||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -61,6 +61,6 @@ thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
|
||||
run 1
|
||||
|
||||
@ -89,8 +89,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction voidfractionNext voidfractionPrev);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -90,8 +90,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -89,8 +89,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction voidfractionNext voidfractionPrev);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -89,8 +89,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction voidfractionNext voidfractionPrev);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
echo both
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -32,8 +32,8 @@ timestep 0.00001
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
# walls
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
||||
|
||||
# particle distributions and insertion
|
||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
||||
|
||||
# insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||
#node : f_couple_cfd[6]
|
||||
#cell id : f_couple_cfd[7]
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
log ../DEM/log.liggghts
|
||||
thermo_log ../DEM/post/thermo.txt
|
||||
|
||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -60,6 +60,6 @@ thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
|
||||
run 1
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
log ../DEM/log.liggghts
|
||||
thermo_log ../DEM/post/thermo.txt
|
||||
|
||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -60,6 +60,6 @@ thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||
|
||||
run 1
|
||||
|
||||
@ -27,7 +27,7 @@ fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
#fix m5 all property/global characteristicVelocity scalar 2.0
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # hertz without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -68,6 +68,6 @@ compute_modify thermo_temp dynamic yes
|
||||
|
||||
# insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 1000 ../DEM/post/dump.liggghts_run id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
dump dmp all custom 1000 ../DEM/post/dump.liggghts_run id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
|
||||
run 1 upto
|
||||
|
||||
@ -89,8 +89,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
}
|
||||
// ************************************************************************* //
|
||||
|
||||
@ -90,8 +90,8 @@ functions
|
||||
fields ( p U voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
/*pressureDrop
|
||||
|
||||
@ -72,8 +72,8 @@ functions
|
||||
fields ( p T);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
}
|
||||
// ************************************************************************* //
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Particle packing by insertion and successive growing of particles
|
||||
# heattransfer in packed bed
|
||||
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history #Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
timestep 0.00001
|
||||
@ -65,7 +65,7 @@ compute_modify thermo_temp dynamic yes
|
||||
|
||||
#insert the first particles
|
||||
run 1
|
||||
dump dmp all custom 1000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius f_heattransfer[0] f_heatFlux[0]
|
||||
dump dmp all custom 1000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius f_heattransfer[0] f_heatFlux[0]
|
||||
|
||||
run 150000
|
||||
|
||||
|
||||
@ -70,6 +70,6 @@ thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius f_Temp[0] f_heatFlux[0]
|
||||
dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z vx vy vz fx fy fz omegax omegay omegaz radius f_Temp[0] f_heatFlux[0]
|
||||
|
||||
run 1
|
||||
|
||||
@ -89,8 +89,8 @@ functions
|
||||
fields ( p U T voidfraction volAverage_voidfraction);
|
||||
|
||||
// Write at same frequency as fields
|
||||
outputControl timeStep;//outputTime;
|
||||
outputInterval 1;
|
||||
writeControl timeStep;//outputTime;
|
||||
writeInterval 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
echo both
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||
|
||||
# pair style
|
||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
||||
pair_style gran model hertz tangential history
|
||||
pair_coeff * *
|
||||
|
||||
# timestep, gravity
|
||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
||||
|
||||
# insert the first particles so that dump is not empty
|
||||
run 1
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||
#node : f_couple_cfd[6]
|
||||
#cell id : f_couple_cfd[7]
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
log ../DEM/log.liggghts
|
||||
thermo_log ../DEM/post/thermo.txt
|
||||
|
||||
@ -40,7 +40,7 @@ fix cylwalls all wall/gran model hertz tangential history primitive type
|
||||
|
||||
# heat transfer
|
||||
fix ftco all property/global thermalConductivity peratomtype 1. # lambda in [W/(K*m)]
|
||||
fix ftca all property/global thermalCapacity peratomtype 1000. # cp in [J/(kg*K)]
|
||||
fix ftca all property/global thermalCapacity peratomtype 1000. # cp in [J/(kg*K)]
|
||||
fix heattransfer all heat/gran initial_temperature 300.
|
||||
|
||||
# set particle temperature for the bed
|
||||
@ -54,7 +54,7 @@ set group all density 2000
|
||||
# cfd coupling
|
||||
fix cfd all couple/cfd couple_every 25 mpi
|
||||
fix cfd2 all couple/cfd/force/implicit
|
||||
fix cfd3 all couple/cfd/convection T0 300
|
||||
fix cfd3 all couple/cfd/convection T0 300
|
||||
|
||||
# apply nve integration to all particles that are inserted as single particles
|
||||
fix integr all nve/sphere
|
||||
@ -72,6 +72,6 @@ thermo 10
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
dump dmp all custom/vtk 10000 ../DEM/post/dump*.liggghts_run.vtk id type radius x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] f_Temp[0]
|
||||
dump dmp all custom/vtk 10000 ../DEM/post/dump*.liggghts_run.vtk id type radius x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] f_Temp[0]
|
||||
|
||||
run 1
|
||||
|
||||
@ -1,19 +1,19 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
|
||||
###############################################
|
||||
#variables
|
||||
|
||||
# DEM-parameters
|
||||
variable partDens equal 1732 # density
|
||||
variable partRad equal 0.00184 # particle radius
|
||||
variable partDens equal 1732 # density
|
||||
variable partRad equal 0.00184 # particle radius
|
||||
variable partVol equal 4*3.14/3*${partRad}^3
|
||||
variable yM equal 5.e6 # Young's modulus
|
||||
variable pR equal 0.25 # Poisson ratio
|
||||
variable rest equal 0.66 # coefficient of restitution
|
||||
variable fric equal 0.95 # coefficient of friction
|
||||
variable roll equal 0.15 # for particles and walls with friction
|
||||
variable noRoll equal 0 # for frictionless walls
|
||||
variable cV equal 0.1 # characteristic velocity
|
||||
variable yM equal 5.e6 # Young's modulus
|
||||
variable pR equal 0.25 # Poisson ratio
|
||||
variable rest equal 0.66 # coefficient of restitution
|
||||
variable fric equal 0.95 # coefficient of friction
|
||||
variable roll equal 0.15 # for particles and walls with friction
|
||||
variable noRoll equal 0 # for frictionless walls
|
||||
variable cV equal 0.1 # characteristic velocity
|
||||
|
||||
# Geometry
|
||||
variable cylrad equal 0.05
|
||||
@ -22,7 +22,7 @@ variable fillV equal ${fillH}*${cylrad}^2*3.14
|
||||
variable nPart equal ceil(${fillV}*0.7/${partVol})
|
||||
|
||||
#variable nPart equal 1
|
||||
#variable partDens equal 1.13 # density
|
||||
#variable partDens equal 1.13 # density
|
||||
|
||||
variable dt equal 0.00005
|
||||
variable skin equal 0.005
|
||||
@ -33,39 +33,39 @@ variable skin equal 0.005
|
||||
variable vthre equal 0.0005
|
||||
###############################################
|
||||
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
|
||||
boundary f f f
|
||||
newton off
|
||||
units si
|
||||
boundary f f f
|
||||
newton off
|
||||
units si
|
||||
processors 1 1 4
|
||||
|
||||
region reg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} 0.0 0.9 units box
|
||||
create_box 1 reg
|
||||
region reg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} 0.0 0.9 units box
|
||||
create_box 1 reg
|
||||
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
neighbor 0.001 bin
|
||||
neigh_modify delay 0
|
||||
|
||||
#Material properties required for new pair styles
|
||||
#Material properties required for granular pair styles
|
||||
|
||||
fix m1 all property/global youngsModulus peratomtype ${yM}
|
||||
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
||||
fix m1 all property/global youngsModulus peratomtype ${yM}
|
||||
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
||||
fix m5 all property/global coefficientRollingFriction peratomtypepair 1 ${roll}
|
||||
fix m6 all property/global characteristicVelocity scalar ${cV}
|
||||
|
||||
#pair style
|
||||
pair_style gran model hertz tangential history rolling_friction cdt
|
||||
pair_style gran model hertz tangential history rolling_friction cdt
|
||||
pair_coeff * *
|
||||
|
||||
#timestep, gravity
|
||||
timestep ${dt}
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
||||
|
||||
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant ${partDens} radius constant ${partRad}
|
||||
@ -73,20 +73,20 @@ fix pdd1 all particledistribution/discrete 1.0 1 pts1 1.0
|
||||
|
||||
region insReg cylinder z 0. 0. ${cylrad} 0.5 0.9 units box
|
||||
|
||||
fix ins all insert/rate/region seed 1001 distributiontemplate pdd1 nparticles ${nPart} particlerate 10000 insert_every 1000 vel constant 0. 0. -0.1 overlapcheck yes all_in yes region insReg ntry_mc 10000
|
||||
fix ins all insert/rate/region seed 1001 distributiontemplate pdd1 nparticles ${nPart} particlerate 10000 insert_every 1000 vel constant 0. 0. -0.1 overlapcheck yes all_in yes region insReg ntry_mc 10000
|
||||
|
||||
#fix loadBalancing all balance 10000 z 10 1.05
|
||||
#fix loadBalancing all balance 10000 z 10 1.05
|
||||
|
||||
fix integr all nve/sphere
|
||||
fix integr all nve/sphere
|
||||
|
||||
fix ts_check all check/timestep/gran 10000 0.1 0.1
|
||||
fix ts_check all check/timestep/gran 10000 0.1 0.1
|
||||
|
||||
#screen output
|
||||
compute 1 all erotate/sphere
|
||||
thermo_style custom step atoms ke c_1 vol
|
||||
thermo 10000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
compute rke all erotate/sphere
|
||||
thermo_style custom step atoms ke c_rke vol
|
||||
thermo 10000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
#======================================================================
|
||||
#- settling
|
||||
@ -98,14 +98,14 @@ variable vcmz equal vcm(all,z)
|
||||
variable vave equal sqrt(v_vcmx*v_vcmx+v_vcmy*v_vcmy+v_vcmz*v_vcmz)
|
||||
print ${vave}
|
||||
|
||||
dump dmp1 all custom/vtk 20000 ../DEM/post/dump*.liggghts_filling.vtk id type type x y z vx vy vz fx fy fz radius
|
||||
dump dmp1 all custom/vtk 20000 ../DEM/post/dump*.liggghts_filling.vtk id type x y z vx vy vz fx fy fz radius
|
||||
|
||||
run 200000
|
||||
|
||||
label loop
|
||||
print "-----> Checking Velocity..."
|
||||
if "${vave}<${vthre}" then "jump in.liggghts_init endloop"
|
||||
print "-----> v ave ${vave}, v threshold ${vthre}, continuing run"
|
||||
print "-----> v ave ${vave}, v threshold ${vthre}, continuing run"
|
||||
|
||||
run 10000
|
||||
jump in.liggghts_init loop
|
||||
@ -117,7 +117,7 @@ label endloop
|
||||
region delReg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} ${fillH} INF units box
|
||||
run 1 every 1 "delete_atoms region delReg"
|
||||
|
||||
#write_restart liggghts.restart.prelim
|
||||
#write_restart liggghts.restart.prelim
|
||||
run 10000
|
||||
write_restart liggghts.restart_${partRad}
|
||||
write_restart liggghts.restart_${partRad}
|
||||
print "everything done"
|
||||
|
||||
@ -1,18 +1,18 @@
|
||||
# Pour granular particles into chute container, then induce flow
|
||||
# Pour granular particles into a cylinder, then induce flow
|
||||
|
||||
#variables
|
||||
|
||||
# DEM-parameters
|
||||
variable partDens equal 1732 # density
|
||||
variable partRad equal 0.00184 # particle radius
|
||||
variable partDens equal 1732 # density
|
||||
variable partRad equal 0.00184 # particle radius
|
||||
variable partVol equal 4*3.14/3*${partRad}^3
|
||||
variable yM equal 5.e6 # Young's modulus
|
||||
variable pR equal 0.25 # Poisson ratio
|
||||
variable rest equal 0.66 # coefficient of restitution
|
||||
variable fric equal 0.95 # coefficient of friction
|
||||
variable roll equal 0.15 # for particles and walls with friction
|
||||
variable noRoll equal 0 # for frictionless walls
|
||||
variable cV equal 0.1 # characteristic velocity
|
||||
variable yM equal 5.e6 # Young's modulus
|
||||
variable pR equal 0.25 # Poisson ratio
|
||||
variable rest equal 0.66 # coefficient of restitution
|
||||
variable fric equal 0.95 # coefficient of friction
|
||||
variable roll equal 0.15 # for particles and walls with friction
|
||||
variable noRoll equal 0 # for frictionless walls
|
||||
variable cV equal 0.1 # characteristic velocity
|
||||
variable Tpart equal 293
|
||||
|
||||
# Geometry
|
||||
@ -24,73 +24,72 @@ variable skin equal 0.005
|
||||
|
||||
|
||||
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
atom_style granular
|
||||
atom_modify map array
|
||||
communicate single vel yes
|
||||
|
||||
boundary f f f
|
||||
newton off
|
||||
units si
|
||||
boundary f f f
|
||||
newton off
|
||||
units si
|
||||
processors 1 1 4
|
||||
|
||||
read_restart ../DEM/liggghts.restart_${partRad}
|
||||
reset_timestep 0
|
||||
read_restart ../DEM/liggghts.restart_${partRad}
|
||||
reset_timestep 0
|
||||
|
||||
neighbor 0.01 bin
|
||||
neigh_modify delay 0
|
||||
neighbor 0.01 bin
|
||||
neigh_modify delay 0
|
||||
|
||||
#Material properties required for new pair styles
|
||||
fix m1 all property/global youngsModulus peratomtype ${yM}
|
||||
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
||||
#Material properties required for granular pair styles
|
||||
fix m1 all property/global youngsModulus peratomtype ${yM}
|
||||
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
||||
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
||||
fix m5 all property/global coefficientRollingFriction peratomtypepair 1 ${roll}
|
||||
fix m6 all property/global characteristicVelocity scalar ${cV}
|
||||
|
||||
fix ftco all property/global thermalConductivity peratomtype 1.4
|
||||
fix ftca all property/global thermalCapacity peratomtype 840.
|
||||
fix heattransfer all heat/gran initial_temperature 293.
|
||||
fix ftco all property/global thermalConductivity peratomtype 1.4
|
||||
fix ftca all property/global thermalCapacity peratomtype 840.
|
||||
fix heattransfer all heat/gran initial_temperature 293.
|
||||
|
||||
|
||||
#pair style
|
||||
pair_style gran model hertz tangential history rolling_friction cdt
|
||||
pair_coeff * *
|
||||
pair_style gran model hertz tangential history rolling_friction cdt
|
||||
pair_coeff * *
|
||||
|
||||
#timestep, gravity
|
||||
timestep ${dt}
|
||||
timestep ${dt}
|
||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||
|
||||
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||
fix zwall_top all wall/gran model hertz tangential history primitive type 1 zplane 0.54
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
||||
|
||||
|
||||
# change the particles density
|
||||
# set group all density ${partDens}
|
||||
|
||||
# set group all density ${partDens}
|
||||
|
||||
|
||||
fix lb all balance 1000 xyz 10 1.05 out tmp.balance
|
||||
|
||||
|
||||
#cfd coupling
|
||||
fix cfd all couple/cfd couple_every 10 mpi
|
||||
fix cfd2 all couple/cfd/force/implicit
|
||||
fix cfd3 all couple/cfd/convection T0 ${Tpart}
|
||||
fix cfd all couple/cfd couple_every 10 mpi
|
||||
fix cfd2 all couple/cfd/force/implicit
|
||||
fix cfd3 all couple/cfd/convection T0 ${Tpart}
|
||||
|
||||
# freeze particles
|
||||
#fix integr all nve/sphere
|
||||
#fix integr all nve/sphere
|
||||
|
||||
|
||||
#screen output
|
||||
variable totmass equal mass(all)
|
||||
compute 1 all erotate/sphere
|
||||
thermo_style custom step atoms ke c_1 vol v_totmass
|
||||
thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
compute rke all erotate/sphere
|
||||
thermo_style custom step atoms ke c_rke vol v_totmass
|
||||
thermo 1000
|
||||
thermo_modify lost ignore norm no
|
||||
compute_modify thermo_temp dynamic yes
|
||||
|
||||
#insert the first particles so that dump is not empty
|
||||
dump dmp all custom/vtk 40000 ../DEM/post/dump*.liggghts_coupled.vtk id type x y z vx vy vz fx fy fz radius f_Temp[0]
|
||||
dump dmp all custom/vtk 40000 ../DEM/post/dump*.liggghts_coupled.vtk id type x y z vx vy vz fx fy fz radius f_Temp[0]
|
||||
|
||||
run 1
|
||||
|
||||
Reference in New Issue
Block a user