From b5783e22aa655ad7b48e358672d20c4abfc39e44 Mon Sep 17 00:00:00 2001 From: Will Bainbridge Date: Wed, 10 May 2023 16:38:07 +0100 Subject: [PATCH] lagrangian/parcel: Added sizeDistribution cloud function This function outputs a graph of a cloud's particle and parcel size distributions. It can be enabled by putting the following settings in the 'cloudFunctions' section of the cloud's properties file: sizeDistribution1 { type sizeDistribution; nPoints 40; setFormat raw; } --- .../Templates/MomentumCloud/MomentumCloud.H | 3 + .../Templates/MomentumCloud/MomentumCloudI.H | 26 +++- .../clouds/Templates/SprayCloud/SprayCloud.C | 2 +- .../include/makeParcelCloudFunctionObjects.H | 4 +- .../CloudFunctionObjects/Flux/Flux.C | 4 +- .../SizeDistribution/SizeDistribution.C | 135 ++++++++++++++++++ .../SizeDistribution/SizeDistribution.H | 130 +++++++++++++++++ 7 files changed, 294 insertions(+), 10 deletions(-) create mode 100644 src/lagrangian/parcel/submodels/CloudFunctionObjects/SizeDistribution/SizeDistribution.C create mode 100644 src/lagrangian/parcel/submodels/CloudFunctionObjects/SizeDistribution/SizeDistribution.H diff --git a/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloud.H b/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloud.H index 428986fe6b..1f1488379a 100644 --- a/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloud.H +++ b/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloud.H @@ -505,6 +505,9 @@ public: //- Mean diameter Dij inline scalar Dij(const label i, const label j) const; + //- Min diameter + inline scalar Dmin() const; + //- Max diameter inline scalar Dmax() const; diff --git a/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloudI.H b/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloudI.H index 16e1c5a28d..4b851b6e65 100644 --- a/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloudI.H +++ b/src/lagrangian/parcel/clouds/Templates/MomentumCloud/MomentumCloudI.H @@ -2,7 +2,7 @@ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org - \\ / A nd | Copyright (C) 2011-2021 OpenFOAM Foundation + \\ / A nd | Copyright (C) 2011-2023 OpenFOAM Foundation \\/ M anipulation | ------------------------------------------------------------------------------- License @@ -332,18 +332,30 @@ inline Foam::scalar Foam::MomentumCloud::Dij template -inline Foam::scalar Foam::MomentumCloud::Dmax() const +inline Foam::scalar Foam::MomentumCloud::Dmin() const { - scalar d = -great; + scalar d = vGreat; + forAllConstIter(typename MomentumCloud, *this, iter) { - const parcelType& p = iter(); - d = max(d, p.d()); + d = min(d, iter().d()); } - reduce(d, maxOp()); + return returnReduce(d, minOp()); +} - return max(0.0, d); + +template +inline Foam::scalar Foam::MomentumCloud::Dmax() const +{ + scalar d = -vGreat; + + forAllConstIter(typename MomentumCloud, *this, iter) + { + d = max(d, iter().d()); + } + + return returnReduce(d, maxOp()); } diff --git a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C index a6b9a0e029..b68ae6c891 100644 --- a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C +++ b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C @@ -218,7 +218,7 @@ void Foam::SprayCloud::info() CloudType::info(); scalar d32 = 1.0e+6*this->Dij(3, 2); scalar d10 = 1.0e+6*this->Dij(1, 0); - scalar dMax = 1.0e+6*this->Dmax(); + scalar dMax = 1.0e+6*max(scalar(0), this->Dmax()); scalar pen = this->penetration(0.95); Info<< " D10, D32, Dmax (mu) = " << d10 << ", " << d32 diff --git a/src/lagrangian/parcel/parcels/include/makeParcelCloudFunctionObjects.H b/src/lagrangian/parcel/parcels/include/makeParcelCloudFunctionObjects.H index ba0e54c0f7..89cf873ed4 100644 --- a/src/lagrangian/parcel/parcels/include/makeParcelCloudFunctionObjects.H +++ b/src/lagrangian/parcel/parcels/include/makeParcelCloudFunctionObjects.H @@ -2,7 +2,7 @@ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org - \\ / A nd | Copyright (C) 2011-2022 OpenFOAM Foundation + \\ / A nd | Copyright (C) 2011-2023 OpenFOAM Foundation \\/ M anipulation | ------------------------------------------------------------------------------- License @@ -37,6 +37,7 @@ License #include "PatchCollisionDensity.H" #include "PatchPostProcessing.H" #include "RelativeVelocity.H" +#include "SizeDistribution.H" #include "VoidFraction.H" // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // @@ -56,6 +57,7 @@ License makeCloudFunctionObjectType(PatchPostProcessing, CloudType); \ makeCloudFunctionObjectType(RelativeVelocity, CloudType); \ makeCloudFunctionObjectType(VoidFraction, CloudType); \ + makeCloudFunctionObjectType(SizeDistribution, CloudType); \ makeCloudFunctionObjectType(VolumeFlux, CloudType); diff --git a/src/lagrangian/parcel/submodels/CloudFunctionObjects/Flux/Flux.C b/src/lagrangian/parcel/submodels/CloudFunctionObjects/Flux/Flux.C index 63ab2d761a..c9aea0380a 100644 --- a/src/lagrangian/parcel/submodels/CloudFunctionObjects/Flux/Flux.C +++ b/src/lagrangian/parcel/submodels/CloudFunctionObjects/Flux/Flux.C @@ -2,7 +2,7 @@ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org - \\ / A nd | Copyright (C) 2022 OpenFOAM Foundation + \\ / A nd | Copyright (C) 2022-2023 OpenFOAM Foundation \\/ M anipulation | ------------------------------------------------------------------------------- License @@ -51,6 +51,7 @@ void Foam::Flux::write() } } + template void Foam::Flux::accumulate ( @@ -80,6 +81,7 @@ void Foam::Flux::accumulate phif += sign*Derived::dPhiDeltaT(p)/mesh.time().deltaTValue(); } + // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // template diff --git a/src/lagrangian/parcel/submodels/CloudFunctionObjects/SizeDistribution/SizeDistribution.C b/src/lagrangian/parcel/submodels/CloudFunctionObjects/SizeDistribution/SizeDistribution.C new file mode 100644 index 0000000000..edf3290ea4 --- /dev/null +++ b/src/lagrangian/parcel/submodels/CloudFunctionObjects/SizeDistribution/SizeDistribution.C @@ -0,0 +1,135 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | Website: https://openfoam.org + \\ / A nd | Copyright (C) 2023 OpenFOAM Foundation + \\/ M anipulation | +------------------------------------------------------------------------------- +License + This file is part of OpenFOAM. + + OpenFOAM is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + OpenFOAM is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with OpenFOAM. If not, see . + +\*---------------------------------------------------------------------------*/ + +#include "SizeDistribution.H" +#include "OSspecific.H" +#include "setWriter.H" + +// * * * * * * * * * * * * * Protectd Member Functions * * * * * * * * * * * // + +template +void Foam::SizeDistribution::write() +{ + const scalar d0 = this->owner().Dmin(), d1 = this->owner().Dmax(); + + // Quit if there is no distribution of diameters + if (d1 == d0) return; + + // The x-axis is linearly spaced between the limiting diameters + scalarField ds(nPoints_); + forAll(ds, i) + { + const scalar f = scalar(i)/(nPoints_ - 1); + ds[i] = (1 - f)*d0 + f*d1; + } + + // Calculate the distribution + scalarField particlePDF(nPoints_, 0), parcelPDF(nPoints_, 0); + forAllConstIter(typename CloudType, this->owner(), iter) + { + const scalar nParticle = iter().nParticle(); + const scalar d = iter().d(); + + const scalar f = (d - d0)/(d1 - d0); + const label i = min(floor(f*(nPoints_ - 1)), nPoints_ - 2); + const scalar g = f*(nPoints_ - 1) - scalar(i); + + particlePDF[i] += nParticle*(1 - g); + particlePDF[i + 1] += nParticle*g; + + parcelPDF[i] += 1 - g; + parcelPDF[i + 1] += g; + } + + Pstream::listCombineGather(particlePDF, plusEqOp()); + Pstream::listCombineScatter(particlePDF); + + Pstream::listCombineGather(parcelPDF, plusEqOp()); + Pstream::listCombineScatter(parcelPDF); + + particlePDF.first() *= 2; + particlePDF.last() *= 2; + particlePDF /= sum(particlePDF)*(d1 - d0)/(nPoints_ - 1); + + parcelPDF.first() *= 2; + parcelPDF.last() *= 2; + parcelPDF /= sum(parcelPDF)*(d1 - d0)/(nPoints_ - 1); + + // Write + if (Pstream::master()) + { + mkDir(this->writeTimeDir()); + + formatter_->write + ( + this->writeTimeDir(), + "distribution", + coordSet(true, "d", ds), + "particle-PDF", + particlePDF, + "parcel-PDF", + parcelPDF + ); + } +} + + +// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // + +template +Foam::SizeDistribution::SizeDistribution +( + const dictionary& dict, + CloudType& owner, + const word& modelName +) +: + CloudFunctionObject(dict, owner, modelName, typeName), + nPoints_(dict.lookup