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ENH: actuation disk modifications and rough Wall function for atm inlet

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This commit is contained in:
sergio
2012-02-02 15:17:50 +00:00
parent 0463b16608
commit 5eca8bd935
11 changed files with 101 additions and 62 deletions
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12
src/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.C
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@ -66,6 +66,12 @@ void Foam::actuationDiskSource::checkData() const
<< "disk direction vector is approximately zero"
<< exit(FatalIOError);
}
if (returnReduce(upstreamCellId_, maxOp<label>()) == -1)
{
FatalErrorIn("Foam::actuationDiskSource::checkData()")
<< "upstream location " << upstreamPoint_ << " not found in mesh"
<< exit(FatalIOError);
}
}
@ -83,7 +89,9 @@ Foam::actuationDiskSource::actuationDiskSource
diskDir_(coeffs_.lookup("diskDir")),
Cp_(readScalar(coeffs_.lookup("Cp"))),
Ct_(readScalar(coeffs_.lookup("Ct"))),
diskArea_(readScalar(coeffs_.lookup("diskArea")))
diskArea_(readScalar(coeffs_.lookup("diskArea"))),
upstreamPoint_(coeffs_.lookup("upstreamPoint")),
upstreamCellId_(-1)
{
coeffs_.lookup("fieldNames") >> fieldNames_;
applied_.setSize(fieldNames_.size(), false);
@ -91,6 +99,8 @@ Foam::actuationDiskSource::actuationDiskSource
Info<< " - creating actuation disk zone: "
<< this->name() << endl;
upstreamCellId_ = mesh.findCell(upstreamPoint_);
checkData();
}

7
src/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.H
View File

@ -48,6 +48,7 @@ Description
Cp 0.1; // power coefficient
Ct 0.5; // thrust coefficient
diskArea 5.0; // disk area
upstreamPoint (0 0 0); // upstream point
}
@ -92,6 +93,12 @@ protected:
//- Disk area
scalar diskArea_;
//- Upstream point sample
point upstreamPoint_;
//- Upstream cell ID
label upstreamCellId_;
private:

15
src/fieldSources/basicSource/actuationDiskSource/actuationDiskSourceTemplates.C
View File

@ -42,20 +42,27 @@ void Foam::actuationDiskSource::addActuationDiskAxialInertialResistance
) const
{
scalar a = 1.0 - Cp_/Ct_;
scalarField T(cells.size());
vector uniDiskDir = diskDir_/mag(diskDir_);
tensor E(tensor::zero);
E.xx() = uniDiskDir.x();
E.yy() = uniDiskDir.y();
E.zz() = uniDiskDir.z();
forAll(cells, i)
vector upU = vector(VGREAT, VGREAT, VGREAT);
scalar upRho = VGREAT;
if (upstreamCellId_ != -1)
{
T[i] = 2.0*rho[cells[i]]*diskArea_*mag(U[cells[i]])*a/(1.0 - a);
upU = U[upstreamCellId_];
upRho = rho[upstreamCellId_];
}
reduce(upU, minOp<vector>());
reduce(upRho, minOp<scalar>());
scalar T = 2.0*upRho*diskArea_*mag(upU)*a*(1 - a);
forAll(cells, i)
{
Usource[cells[i]] -= ((Vcells[cells[i]]/V())*T[i]*E) & U[cells[i]];
Usource[cells[i]] += ((Vcells[cells[i]]/V())*T*E) & upU;
}
}

1
src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.H
View File

@ -53,6 +53,7 @@ Description
Ct 0.5; // thrust coefficient
diskArea 5.0; // disk area
coeffs (0.1 0.5 0.01); // radial distribution coefficients
upstreamPoint (0 0 0); // upstream point
}

22
src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSourceTemplates.C
View File

@ -44,11 +44,9 @@ addRadialActuationDiskAxialInertialResistance
) const
{
scalar a = 1.0 - Cp_/Ct_;
scalarField T(cells.size());
scalarField Tr(cells.size());
const vector uniDiskDir = diskDir_/mag(diskDir_);
tensor E(tensor::zero);
E.xx() = uniDiskDir.x();
E.yy() = uniDiskDir.y();
@ -65,21 +63,27 @@ addRadialActuationDiskAxialInertialResistance
+ radialCoeffs_[1]*sqr(maxR)/2.0
+ radialCoeffs_[2]*pow4(maxR)/3.0;
vector upU = vector(VGREAT, VGREAT, VGREAT);
scalar upRho = VGREAT;
if (upstreamCellId_ != -1)
{
upU = U[upstreamCellId_];
upRho = rho[upstreamCellId_];
}
reduce(upU, minOp<vector>());
reduce(upRho, minOp<scalar>());
scalar T = 2.0*upRho*diskArea_*mag(upU)*a*(1.0 - a);
forAll(cells, i)
{
T[i] = 2.0*rho[cells[i]]*diskArea_*mag(U[cells[i]])*a/(1.0 - a);
scalar r2 = magSqr(mesh().cellCentres()[cells[i]] - avgCentre);
Tr[i] =
T[i]
T
*(radialCoeffs_[0] + radialCoeffs_[1]*r2 + radialCoeffs_[2]*sqr(r2))
/intCoeffs;
}
forAll(cells, i)
{
Usource[cells[i]] -= ((Vcells[cells[i]]/V_)*Tr[i]*E) & U[cells[i]];
Usource[cells[i]] += ((Vcells[cells[i]]/V_)*Tr[i]*E) & upU;
}
if (debug)