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update morph LBM to use target saturation list

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This commit is contained in:
James E McClure 2018-11-02 11:33:12 -04:00
parent 19bf87a335
commit b922bab34e
2 changed files with 44 additions and 9 deletions
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51
models/ColorModel.cpp
View File

@ -80,8 +80,6 @@ void ScaLBL_ColorModel::ReadParams(string filename){
outletA=0.f;
outletB=1.f;
if (BoundaryCondition==4) flux *= rhoA; // mass flux must adjust for density (see formulation for details)
// Read domain parameters
auto L = domain_db->getVector<double>( "L" );
auto size = domain_db->getVector<int>( "n" );
@ -96,6 +94,8 @@ void ScaLBL_ColorModel::ReadParams(string filename){
nprocx = nproc[0];
nprocy = nproc[1];
nprocz = nproc[2];
if (BoundaryCondition==4) flux *= rhoA; // mass flux must adjust for density (see formulation for details)
}
void ScaLBL_ColorModel::SetDomain(){
@ -397,11 +397,20 @@ void ScaLBL_ColorModel::Run(){
int nprocs=nprocx*nprocy*nprocz;
const RankInfoStruct rank_info(rank,nprocx,nprocy,nprocz);
bool SET_CAPILLARY_NUMBER = false;
bool MORPH_ADAPT = false;
int lead_timesteps = 0;
int ramp_timesteps = 50000;
double tolerance = 1.f;
int target_saturation_index=0;
std::vector<double> target_saturation;
double TARGET_SATURATION = 0.f;
if (domain_db->keyExists( "Sw" )){
target_saturation = domain_db->getVector<double>( "Sw" );
}
double capillary_number;
bool SET_CAPILLARY_NUMBER=false;
if (color_db->keyExists( "capillary_number" )){
capillary_number = color_db->getScalar<double>( "capillary_number" );
SET_CAPILLARY_NUMBER=true;
@ -531,10 +540,35 @@ void ScaLBL_ColorModel::Run(){
// Run the analysis
analysis.run( timestep, *Averages, Phi, Pressure, Velocity, fq, Den );
if (timestep > 50000){
if (timestep > ramp_timesteps){
// allow initial ramp-up to get closer to steady state
if (timestep%morph_interval == 0 || tolerance < 0.01){
MorphInit(beta,morph_delta);
tolerance = 1.f;
MORPH_ADAPT = true;
TARGET_SATURATION = target_saturation[target_saturation_index++];
double volB = Averages->wet_morph->V();
double volA = Averages->nonwet_morph->V();
double current_saturation = volB/(volA+volB);
if (morph_delta > 0.f){
// wetting phase saturation will decrease
while (current_saturation > TARGET_SATURATION && target_saturation_index < target_saturation.size() ){
TARGET_SATURATION = target_saturation[target_saturation_index++];
}
}
else{
// wetting phase saturation will increase
while (current_saturation < TARGET_SATURATION && target_saturation_index < target_saturation.size() ){
TARGET_SATURATION = target_saturation[target_saturation_index++];
}
}
}
if (MORPH_ADAPT){
double volB = Averages->wet_morph->V();
double volA = Averages->nonwet_morph->V();
double delta_volume = MorphInit(beta,morph_delta);
if ((1.f+delta_volume)*volA/(volA + volB) > 1.f - TARGET_SATURATION){
MORPH_ADAPT = false;
}
MPI_Barrier(comm);
lead_timesteps = 0;
tolerance = 1.f;
@ -612,7 +646,7 @@ void ScaLBL_ColorModel::Run(){
// ************************************************************************
}
void ScaLBL_ColorModel::MorphInit(const double beta, const double morph_delta){
double ScaLBL_ColorModel::MorphInit(const double beta, const double morph_delta){
const RankInfoStruct rank_info(rank,nprocx,nprocy,nprocz);
double vF = 0.f;
@ -714,7 +748,8 @@ void ScaLBL_ColorModel::MorphInit(const double beta, const double morph_delta){
MPI_Allreduce(&count,&count_global,1,MPI_DOUBLE,MPI_SUM,comm);
volume_final=count_global;
if (rank == 0) printf("MorphInit: change fluid volume fraction by %f \n", (volume_final-volume_initial)/volume_initial);
double delta_volume = (volume_final-volume_initial)/volume_initial;
if (rank == 0) printf("MorphInit: change fluid volume fraction by %f \n", delta_volume);
// 6. copy back to the device
//if (rank==0) printf("MorphInit: copy data back to device\n");
@ -735,7 +770,7 @@ void ScaLBL_ColorModel::MorphInit(const double beta, const double morph_delta){
ScaLBL_SetSlice_z(Phi,-1.0,Nx,Ny,Nz,Nz-3);
}
}
return delta_volume;
}
void ScaLBL_ColorModel::WriteDebug(){

2
models/ColorModel.h
View File

@ -77,7 +77,7 @@ private:
//int rank,nprocs;
void LoadParams(std::shared_ptr<Database> db0);
void AssignComponentLabels(double *phase);
void MorphInit(const double beta, const double morph_delta);
double MorphInit(const double beta, const double morph_delta);
};