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fix timestep / exit loop criterion

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This commit is contained in:
James McClure 2021-09-08 18:44:25 -04:00
parent c4030da867
commit a6e1abc20c
1 changed files with 14 additions and 2 deletions
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16
models/ColorModel.cpp
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@ -590,12 +590,14 @@ double ScaLBL_ColorModel::Run(int returntime){
bool Regular = false; bool Regular = false;
bool RESCALE_FORCE = false; bool RESCALE_FORCE = false;
bool SET_CAPILLARY_NUMBER = false; bool SET_CAPILLARY_NUMBER = false;
bool TRIGGER_FORCE_RESCALE = false;
double tolerance = 0.01; double tolerance = 0.01;
auto current_db = db->cloneDatabase(); auto current_db = db->cloneDatabase();
auto flow_db = db->getDatabase( "FlowAdaptor" ); auto flow_db = db->getDatabase( "FlowAdaptor" );
int MIN_STEADY_TIMESTEPS = flow_db->getWithDefault<int>( "min_steady_timesteps", 1000000 ); int MIN_STEADY_TIMESTEPS = flow_db->getWithDefault<int>( "min_steady_timesteps", 1000000 );
int MAX_STEADY_TIMESTEPS = flow_db->getWithDefault<int>( "max_steady_timesteps", 1000000 ); int MAX_STEADY_TIMESTEPS = flow_db->getWithDefault<int>( "max_steady_timesteps", 1000000 );
int RESCALE_FORCE_AFTER_TIMESTEP = MAX_STEADY_TIMESTEPS*2; int RESCALE_FORCE_AFTER_TIMESTEP = MAX_STEADY_TIMESTEPS*2;
int INITIAL_TIMESTEP = timestep;
double capillary_number = 1.0e-5; double capillary_number = 1.0e-5;
double Ca_previous = 0.0; double Ca_previous = 0.0;
@ -604,7 +606,6 @@ double ScaLBL_ColorModel::Run(int returntime){
if (color_db->keyExists( "capillary_number" )){ if (color_db->keyExists( "capillary_number" )){
capillary_number = color_db->getScalar<double>( "capillary_number" ); capillary_number = color_db->getScalar<double>( "capillary_number" );
SET_CAPILLARY_NUMBER=true; SET_CAPILLARY_NUMBER=true;
RESCALE_FORCE_AFTER_TIMESTEP = MIN_STEADY_TIMESTEPS;
maxCa = 2.0*capillary_number; maxCa = 2.0*capillary_number;
minCa = 0.8*capillary_number; minCa = 0.8*capillary_number;
} }
@ -744,12 +745,23 @@ double ScaLBL_ColorModel::Run(int returntime){
if (CURRENT_TIMESTEP >= MAX_STEADY_TIMESTEPS) if (CURRENT_TIMESTEP >= MAX_STEADY_TIMESTEPS)
isSteady = true; isSteady = true;
if (isSteady && (Ca > maxCa || Ca < minCa) ){ if (isSteady && (Ca > maxCa || Ca < minCa) && SET_CAPILLARY_NUMBER ){
/* re-run the point if the actual Ca is too far from the target Ca */
isSteady = false; isSteady = false;
RESCALE_FORCE = true; RESCALE_FORCE = true;
t1 = std::chrono::system_clock::now();
CURRENT_TIMESTEP = 0;
timestep = INITIAL_TIMESTEP;
TRIGGER_FORCE_RESCALE = true;
if (rank == 0) printf(" Capillary number missed target value = %f (measured value was Ca = %f) \n ",capillary_number, Ca);
} }
if (RESCALE_FORCE == true && SET_CAPILLARY_NUMBER == true && CURRENT_TIMESTEP > RESCALE_FORCE_AFTER_TIMESTEP){ if (RESCALE_FORCE == true && SET_CAPILLARY_NUMBER == true && CURRENT_TIMESTEP > RESCALE_FORCE_AFTER_TIMESTEP){
TRIGGER_FORCE_RESCALE = true;
}
if (TRIGGER_FORCE_RESCALE){
RESCALE_FORCE = false; RESCALE_FORCE = false;
double RESCALE_FORCE_FACTOR = capillary_number / Ca; double RESCALE_FORCE_FACTOR = capillary_number / Ca;
if (RESCALE_FORCE_FACTOR > 2.0) RESCALE_FORCE_FACTOR = 2.0; if (RESCALE_FORCE_FACTOR > 2.0) RESCALE_FORCE_FACTOR = 2.0;