//**************************************** void cfdemCloud::calcMultiphaseTurbulence() { //Temporary field for collecting the sources volScalarField tmpSource ( IOobject ( "tmpSource", mesh().time().timeName(), mesh(), IOobject::NO_READ, IOobject::NO_WRITE ), turbulenceMultiphase_*0.0 ); //reset sources, and compute the sources due to the cloud //Will accumulate all sources for all force models for (int iModel=0; iModel<nrForceModels(); iModel++) // { #ifdef compre forceM(iModel).multiphaseTurbulence(tmpSource, true); #else forceM(iModel).multiphaseTurbulence(tmpSource, false); #endif if(iModel==0) turbulenceMultiphase_ = tmpSource; else turbulenceMultiphase_ += tmpSource; } }
void Foam::cfdemCloud::setParticleForceField() { averagingM().setVectorSum ( forceM(0).impParticleForces(), impForces_, particleWeights_, NULL //mask ); averagingM().setVectorSum ( forceM(0).expParticleForces(), expForces_, particleWeights_, NULL //mask ); }
void Foam::cfdemCloud::giveDEMdata() { if(forceM(0).coupleForce()) { dataExchangeM().giveData("dragforce","vector-atom",DEMForces_); if(impDEMdrag_) { dataExchangeM().giveData("Ksl","scalar-atom",Cds_); dataExchangeM().giveData("uf","vector-atom",fluidVel_); } } if(verbose_) Info << "giveDEMdata done." << endl; }
bool Foam::cfdemCloudIB::evolve() { numberOfParticlesChanged_ = false; arraysReallocated_=false; bool doCouple=false; if (dataExchangeM().couple()) { Info << "\n timeStepFraction() = " << dataExchangeM().timeStepFraction() << endl; doCouple=true; if(verbose_) Info << "- getDEMdata()" << endl; getDEMdata(); Info << "nr particles = " << numberOfParticles() << endl; // search cellID of particles if(verbose_) Info << "- findCell()" << endl; locateM().findCell(NULL,positions_,cellIDs_,numberOfParticles()); if(verbose_) Info << "findCell done." << endl; // set void fraction field if(verbose_) Info << "- setvoidFraction()" << endl; voidFractionM().setvoidFraction(NULL,voidfractions_,particleWeights_,particleVolumes_); if(verbose_) Info << "setvoidFraction done." << endl; // set particles forces if(verbose_) Info << "- setForce(forces_)" << endl; for(int index = 0;index < numberOfParticles_; ++index){ for(int i=0;i<3;i++){ impForces_[index][i] = 0; expForces_[index][i] = 0; DEMForces_[index][i] = 0; } } for (int i=0;i<nrForceModels();i++) forceM(i).setForce(); if(verbose_) Info << "setForce done." << endl; // write DEM data if(verbose_) Info << " -giveDEMdata()" << endl; giveDEMdata(); } Info << "evolve done." << endl; //if(verbose_) #include "debugInfo.H"; // do particle IO IOM().dumpDEMdata(); return doCouple; }
//=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*= // * * * write top level fields * * * // void Foam::cfdemCloud::giveUSERdata() { if(forceM(0).coupleForce()) { //Handover USER-defined data for(std::vector<word>::iterator it = namesFieldsUserCFDEMToExt.begin(); it != namesFieldsUserCFDEMToExt.end(); ++it) { int positionInRegister = std::distance(namesFieldsUserCFDEMToExt.begin(), it); dataExchangeM().giveData(namesFieldsUserCFDEMToExt[positionInRegister],"scalar-atom", particleDatFieldsUserCFDEMToExt[positionInRegister] ); Info << "giveData field with name '" << *it << "' at position: " << positionInRegister << endl; } } if(verbose_) Info << "giveUSERdata done." << endl; }
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // Foam::cfdemCloud::cfdemCloud ( const fvMesh& mesh ) : mesh_(mesh), couplingProperties_ ( IOobject ( "couplingProperties", mesh_.time().constant(), mesh_, IOobject::MUST_READ, IOobject::NO_WRITE ) ), liggghtsCommandDict_ ( IOobject ( "liggghtsCommands", mesh_.time().constant(), mesh_, IOobject::MUST_READ, IOobject::NO_WRITE ) ), verbose_(false), ignore_(false), modelType_(couplingProperties_.lookup("modelType")), positions_(NULL), velocities_(NULL), fluidVel_(NULL), impForces_(NULL), expForces_(NULL), DEMForces_(NULL), Cds_(NULL), radii_(NULL), voidfractions_(NULL), cellIDs_(NULL), particleWeights_(NULL), particleVolumes_(NULL), numberOfParticles_(0), numberOfParticlesChanged_(false), arraysReallocated_(false), forceModels_(couplingProperties_.lookup("forceModels")), momCoupleModels_(couplingProperties_.lookup("momCoupleModels")), liggghtsCommandModelList_(liggghtsCommandDict_.lookup("liggghtsCommandModels")), turbulenceModelType_(couplingProperties_.lookup("turbulenceModelType")), cgOK_(true), impDEMdrag_(false), useDDTvoidfraction_(false), ddtVoidfraction_ ( IOobject ( "ddtVoidfraction", mesh.time().timeName(), mesh, IOobject::NO_READ, IOobject::AUTO_WRITE ), mesh, dimensionedScalar("zero", dimensionSet(0,0,-1,0,0), 0) // 1/s ), turbulence_ ( #if defined(version21) || defined(version16ext) #ifdef comp mesh.lookupObject<compressible::turbulenceModel> #else mesh.lookupObject<incompressible::turbulenceModel> #endif #elif defined(version15) mesh.lookupObject<incompressible::RASModel> #endif ( turbulenceModelType_ ) ), locateModel_ ( locateModel::New ( couplingProperties_, *this ) ), /*momCoupleModel_ ( momCoupleModel::New ( couplingProperties_, *this ) ),*/ dataExchangeModel_ ( dataExchangeModel::New ( couplingProperties_, *this ) ), IOModel_ ( IOModel::New ( couplingProperties_, *this ) ), probeModel_ ( probeModel::New ( couplingProperties_, *this, "none", "none" ) ), voidFractionModel_ ( voidFractionModel::New ( couplingProperties_, *this ) ), averagingModel_ ( averagingModel::New ( couplingProperties_, *this ) ), clockModel_ ( clockModel::New ( couplingProperties_, *this ) ), smoothingModel_ ( smoothingModel::New ( couplingProperties_, *this ) ), meshMotionModel_ ( meshMotionModel::New ( couplingProperties_, *this ) ) { #include "versionInfo.H" Info << "If BC are important, please provide volScalarFields -imp/expParticleForces-" << endl; if (couplingProperties_.found("verbose")) verbose_=true; if (couplingProperties_.found("ignore")) ignore_=true; if (turbulenceModelType_=="LESProperties") Info << "WARNING - LES functionality not yet tested!" << endl; if (couplingProperties_.found("useDDTvoidfraction")) useDDTvoidfraction_=true; else Info << "ignoring ddt(voidfraction)" << endl; forceModel_ = new autoPtr<forceModel>[nrForceModels()]; for (int i=0;i<nrForceModels();i++) { forceModel_[i] = forceModel::New ( couplingProperties_, *this, forceModels_[i] ); } momCoupleModel_ = new autoPtr<momCoupleModel>[momCoupleModels_.size()]; for (int i=0;i<momCoupleModels_.size();i++) { momCoupleModel_[i] = momCoupleModel::New ( couplingProperties_, *this, momCoupleModels_[i] ); } // run liggghts commands from cfdem liggghtsCommand_ = new autoPtr<liggghtsCommandModel>[liggghtsCommandModelList_.size()]; for (int i=0;i<liggghtsCommandModelList_.size();i++) { liggghtsCommand_[i] = liggghtsCommandModel::New ( liggghtsCommandDict_, *this, liggghtsCommandModelList_[i], i ); } dataExchangeM().setCG(); if (!cgOK_ && forceM(0).cg() > 1) FatalError<< "at least one of your models is not fit for cg !!!"<< abort(FatalError); }
bool Foam::cfdemCloud::evolve ( volScalarField& alpha, volVectorField& Us, volVectorField& U ) { numberOfParticlesChanged_ = false; arraysReallocated_=false; bool doCouple=false; if(!ignore()) { if (dataExchangeM().couple()) { Info << "\n Coupling..." << endl; doCouple=true; // reset vol Fields clockM().start(16,"resetVolFields"); if(verbose_) { Info << "couplingStep:" << dataExchangeM().couplingStep() << "\n- resetVolFields()" << endl; } averagingM().resetVectorAverage(averagingM().UsPrev(),averagingM().UsNext()); voidFractionM().resetVoidFractions(); averagingM().resetVectorAverage(forceM(0).impParticleForces(),forceM(0).impParticleForces(),true); averagingM().resetVectorAverage(forceM(0).expParticleForces(),forceM(0).expParticleForces(),true); averagingM().resetWeightFields(); for (int i=0;i<momCoupleModels_.size(); i++) momCoupleM(i).resetMomSourceField(); if(verbose_) Info << "resetVolFields done." << endl; clockM().stop("resetVolFields"); if(verbose_) Info << "- getDEMdata()" << endl; clockM().start(17,"getDEMdata"); getDEMdata(); clockM().stop("getDEMdata"); if(verbose_) Info << "- getDEMdata done." << endl; // search cellID of particles clockM().start(18,"findCell"); if(verbose_) Info << "- findCell()" << endl; findCells(); if(verbose_) Info << "findCell done." << endl; clockM().stop("findCell"); // set void fraction field clockM().start(19,"setvoidFraction"); if(verbose_) Info << "- setvoidFraction()" << endl; voidFractionM().setvoidFraction(NULL,voidfractions_,particleWeights_,particleVolumes_); if(verbose_) Info << "setvoidFraction done." << endl; clockM().stop("setvoidFraction"); // set particles velocity field clockM().start(20,"setVectorAverage"); setVectorAverages(); clockM().stop("setVectorAverage"); // set particles forces clockM().start(21,"setForce"); if(verbose_) Info << "- setForce(forces_)" << endl; setForces(); if(verbose_) Info << "setForce done." << endl; clockM().stop("setForce"); // get next force field clockM().start(22,"setParticleForceField"); if(verbose_) Info << "- setParticleForceField()" << endl; averagingM().setVectorSum ( forceM(0).impParticleForces(), impForces_, particleWeights_, NULL //mask ); averagingM().setVectorSum ( forceM(0).expParticleForces(), expForces_, particleWeights_, NULL //mask ); if(verbose_) Info << "- setParticleForceField done." << endl; clockM().stop("setParticleForceField"); // write DEM data if(verbose_) Info << " -giveDEMdata()" << endl; clockM().start(23,"giveDEMdata"); giveDEMdata(); clockM().stop("giveDEMdata"); }//end dataExchangeM().couple() Info << "\n timeStepFraction() = " << dataExchangeM().timeStepFraction() << endl; clockM().start(24,"interpolateEulerFields"); // update smoothing model smoothingM().dSmoothing(); //============================================ // update voidFractionField V1 alpha = voidFractionM().voidFractionInterp(); smoothingM().smoothen(alpha); if(dataExchangeM().couplingStep() < 2) { alpha.oldTime() = alpha; // supress volume src alpha.oldTime().correctBoundaryConditions(); } alpha.correctBoundaryConditions(); // calc ddt(voidfraction) //calcDdtVoidfraction(voidFractionM().voidFractionNext()); calcDdtVoidfraction(alpha); // update particle velocity Field Us = averagingM().UsInterp(); //smoothingM().smoothenReferenceField(Us); Us.correctBoundaryConditions(); /*//============================================ // update voidFractionField volScalarField oldAlpha = alpha.oldTime(); //save old (smooth) alpha field alpha.oldTime().internalField() = voidFractionM().voidFractionInterp(); smoothingM().smoothen(alpha); alpha.correctBoundaryConditions(); alpha.oldTime() = oldAlpha; //set old (smooth) alpha field to allow correct computation of ddt // calc ddt(voidfraction) if (doCouple) calcDdtVoidfraction(alpha); //calcDdtVoidfraction(alpha); // alternative with scale=1! (does not see change in alpha?) // update particle velocity Field Us.oldTime().internalField() = averagingM().UsInterp(); smoothingM().smoothenReferenceField(Us); Us.correctBoundaryConditions(); //============================================*/ clockM().stop("interpolateEulerFields"); if(verbose_){ #include "debugInfo.H" } clockM().start(25,"dumpDEMdata"); // do particle IO IOM().dumpDEMdata(); clockM().stop("dumpDEMdata"); }//end ignore return doCouple; }
bool Foam::cfdemCloud::evolve ( volScalarField& alpha, volVectorField& Us, volVectorField& U ) { numberOfParticlesChanged_ = false; arraysReallocated_=false; bool doCouple=false; if(!ignore()) { if (dataExchangeM().doCoupleNow()) { Info << "\n Coupling..." << endl; dataExchangeM().couple(0); doCouple=true; // reset vol Fields clockM().start(16,"resetVolFields"); if(verbose_) { Info << "couplingStep:" << dataExchangeM().couplingStep() << "\n- resetVolFields()" << endl; } averagingM().resetVectorAverage(averagingM().UsPrev(),averagingM().UsNext(),false); resetVoidFraction(); averagingM().resetVectorAverage(forceM(0).impParticleForces(),forceM(0).impParticleForces(),true); averagingM().resetVectorAverage(forceM(0).expParticleForces(),forceM(0).expParticleForces(),true); averagingM().resetWeightFields(); for (int i=0;i<momCoupleModels_.size(); i++) momCoupleM(i).resetMomSourceField(); if(verbose_) Info << "resetVolFields done." << endl; clockM().stop("resetVolFields"); if(verbose_) Info << "- getDEMdata()" << endl; clockM().start(17,"getDEMdata"); getDEMdata(); clockM().stop("getDEMdata"); if(verbose_) Info << "- getDEMdata done." << endl; // search cellID of particles clockM().start(18,"findCell"); if(verbose_) Info << "- findCell()" << endl; findCells(); if(verbose_) Info << "findCell done." << endl; clockM().stop("findCell"); // set void fraction field clockM().start(19,"setvoidFraction"); if(verbose_) Info << "- setvoidFraction()" << endl; setVoidFraction(); if(verbose_) Info << "setvoidFraction done." << endl; clockM().stop("setvoidFraction"); // set average particles velocity field clockM().start(20,"setVectorAverage"); setVectorAverages(); //Smoothen "next" fields smoothingM().dSmoothing(); smoothingM().smoothen(voidFractionM().voidFractionNext()); //only smoothen if we use implicit force coupling in cells void of particles //because we need unsmoothened Us field to detect cells for explicit //force coupling if(!treatVoidCellsAsExplicitForce()) smoothingM().smoothenReferenceField(averagingM().UsNext()); clockM().stop("setVectorAverage"); } //============================================ //CHECK JUST TIME-INTERPOATE ALREADY SMOOTHENED VOIDFRACTIONNEXT AND UsNEXT FIELD // IMPLICIT FORCE CONTRIBUTION AND SOLVER USE EXACTLY THE SAME AVERAGED // QUANTITIES AT THE GRID! Info << "\n timeStepFraction() = " << dataExchangeM().timeStepFraction() << endl; clockM().start(24,"interpolateEulerFields"); // update voidFractionField setAlpha(alpha); if(dataExchangeM().couplingStep() < 2) { alpha.oldTime() = alpha; // supress volume src alpha.oldTime().correctBoundaryConditions(); } alpha.correctBoundaryConditions(); // calc ddt(voidfraction) calcDdtVoidfraction(alpha,Us); // update mean particle velocity Field Us = averagingM().UsInterp(); Us.correctBoundaryConditions(); clockM().stop("interpolateEulerFields"); //============================================ if(doCouple) { // set particles forces clockM().start(21,"setForce"); if(verbose_) Info << "- setForce(forces_)" << endl; setForces(); if(verbose_) Info << "setForce done." << endl; calcMultiphaseTurbulence(); if(verbose_) Info << "calcMultiphaseTurbulence done." << endl; clockM().stop("setForce"); // get next force field clockM().start(22,"setParticleForceField"); if(verbose_) Info << "- setParticleForceField()" << endl; setParticleForceField(); if(verbose_) Info << "- setParticleForceField done." << endl; clockM().stop("setParticleForceField"); // write DEM data if(verbose_) Info << " -giveDEMdata()" << endl; clockM().start(23,"giveDEMdata"); giveDEMdata(); clockM().stop("giveDEMdata"); dataExchangeM().couple(1); }//end dataExchangeM().couple() if(verbose_){ #include "debugInfo.H" } clockM().start(25,"dumpDEMdata"); // do particle IO IOM().dumpDEMdata(); clockM().stop("dumpDEMdata"); }//end ignore return doCouple; }