FPPowerSystemInitialize.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <basic.h>
#include <arrayfunctions.h>
#include <physicalmodels/fppowersystem.h>
#include <mpivars.h>
#include <hypar.h>

Go to the source code of this file.

Functions
double	FPPowerSystemComputeCFL (void *, void *, double, double)
double	FPPowerSystemComputeDiffNumber (void *, void *, double, double)
int	FPPowerSystemAdvection (double *, double *, int, void *, double)
int	FPPowerSystemDiffusion (double *, double *, int, void *, double)
int	FPPowerSystemUpwind (double *, double *, double *, double *, double *, double *, int, void *, double)
int	FPPowerSystemPostStep (double *, void *, void *, double, int)
int	FPPowerSystemPrintStep (void *, void *, double)
int	FPPowerSystemInitialize (void *s, void *m)

Function Documentation

FPPowerSystemComputeCFL()

double FPPowerSystemComputeCFL	(	void *	,
		void *	,
		double	,
		double
	)

Definition at line 11 of file FPPowerSystemComputeCFL.c.

{
  HyPar         *solver = (HyPar*)        s;
  FPPowerSystem *params = (FPPowerSystem*)solver->physics;

  int     ndims  = solver->ndims;
  int     ghosts = solver->ghosts;
  int     *dim   = solver->dim_local;

  double  max_cfl = 0;
  int     index[ndims];
  int done = 0; _ArraySetValue_(index,ndims,0);
  while (!done) {
    double x;     _GetCoordinate_(0,index[0],dim,ghosts,solver->x,x);
    double y;     _GetCoordinate_(1,index[1],dim,ghosts,solver->x,y);
    double dxinv; _GetCoordinate_(0,index[0],dim,ghosts,solver->dxinv,dxinv);
    double dyinv; _GetCoordinate_(1,index[1],dim,ghosts,solver->dxinv,dyinv);
    double drift_x= FPPowerSystemDriftFunction(0,params,x,y,t);
    double drift_y= FPPowerSystemDriftFunction(1,params,x,y,t);

    double local_cfl_x = absolute(drift_x) * dt * dxinv;
    double local_cfl_y = absolute(drift_y) * dt * dyinv;

    if (local_cfl_x > max_cfl) max_cfl = local_cfl_x;
    if (local_cfl_y > max_cfl) max_cfl = local_cfl_y;

    _ArrayIncrementIndex_(ndims,dim,index,done);
  }

  return(max_cfl);
}

FPPowerSystemComputeDiffNumber()

double FPPowerSystemComputeDiffNumber	(	void *	,
		void *	,
		double	,
		double
	)

Definition at line 11 of file FPPowerSystemComputeDiffNumber.c.

{
  HyPar         *solver = (HyPar*)        s;
  FPPowerSystem *params = (FPPowerSystem*)solver->physics;

  int     ndims  = solver->ndims;
  int     ghosts = solver->ghosts;
  int     *dim   = solver->dim_local;

  double  max_diff = 0;
  int     index[ndims];
  int done = 0; _ArraySetValue_(index,ndims,0);
  while (!done) {
    double dxinv; _GetCoordinate_(0,index[0],dim,ghosts,solver->dxinv,dxinv);
    double dyinv; _GetCoordinate_(1,index[1],dim,ghosts,solver->dxinv,dyinv);
    double dissp_x= FPPowerSystemDissipationFunction(0,params,t);
    double dissp_y= FPPowerSystemDissipationFunction(1,params,t);

    double local_diff_x = absolute(dissp_x) * dt * dxinv * dxinv;
    double local_diff_y = absolute(dissp_y) * dt * dyinv * dyinv;

    if (local_diff_x > max_diff) max_diff = local_diff_x;
    if (local_diff_y > max_diff) max_diff = local_diff_y;

    _ArrayIncrementIndex_(ndims,dim,index,done);
  }

  return(max_diff);
}

FPPowerSystemAdvection()

int FPPowerSystemAdvection	(	double *	,
		double *	,
		int	,
		void *	,
		double
	)

Definition at line 7 of file FPPowerSystemAdvection.c.

{
  HyPar         *solver = (HyPar*)        s;
//  FPPowerSystem *params = (FPPowerSystem*)solver->physics;
  int           i, v;

  int *dim    = solver->dim_local;
  int ghosts  = solver->ghosts;
  int ndims   = solver->ndims;
  int nvars   = solver->nvars;
  int index[ndims], bounds[ndims], offset[ndims];

  /* set bounds for array index to include ghost points */
  _ArrayCopy1D_(dim,bounds,ndims);
  for (i=0; i<ndims; i++) bounds[i] += 2*ghosts;

  /* set offset such that index is compatible with ghost point arrangement */
  _ArraySetValue_(offset,ndims,-ghosts);

  int done = 0; _ArraySetValue_(index,ndims,0);
  while (!done) {
    int p; _ArrayIndex1DWO_(ndims,dim,index,offset,ghosts,p);
    for (v = 0; v < nvars; v++) f[nvars*p+v] = u[nvars*p+v];
    _ArrayIncrementIndex_(ndims,bounds,index,done);
  }

  return(0);
}

FPPowerSystemDiffusion()

int FPPowerSystemDiffusion	(	double *	,
		double *	,
		int	,
		void *	,
		double
	)

Definition at line 9 of file FPPowerSystemDiffusion.c.

{
  HyPar         *solver = (HyPar*)        s;
  FPPowerSystem *params = (FPPowerSystem*) solver->physics;
  int           i, v;

  int *dim    = solver->dim_local;
  int ghosts  = solver->ghosts;
  int ndims   = solver->ndims;
  int nvars   = solver->nvars;
  int index[ndims], bounds[ndims], offset[ndims];

  /* set bounds for array index to include ghost points */
  _ArrayCopy1D_(dim,bounds,ndims);
  for (i=0; i<ndims; i++) bounds[i] += 2*ghosts;

  /* set offset such that index is compatible with ghost point arrangement */
  _ArraySetValue_(offset,ndims,-ghosts);

  int done = 0; _ArraySetValue_(index,ndims,0);
  while (!done) {
    int p; _ArrayIndex1DWO_(ndims,dim,index,offset,ghosts,p);
    double dissipation = FPPowerSystemDissipationFunction(dir,params,t);
    for (v = 0; v < nvars; v++) f[nvars*p+v] = dissipation * u[nvars*p+v];
    _ArrayIncrementIndex_(ndims,bounds,index,done);
  }

  return(0);
}

FPPowerSystemUpwind()

int FPPowerSystemUpwind	(	double *	,
		double *	,
		double *	,
		double *	,
		double *	,
		double *	,
		int	,
		void *	,
		double
	)

Definition at line 9 of file FPPowerSystemUpwind.c.

{
  HyPar         *solver = (HyPar*) s;
  FPPowerSystem *params = (FPPowerSystem*)solver->physics;
  int           done,v;

  int ndims   = solver->ndims;
  int nvars   = solver->nvars;
  int ghosts  = solver->ghosts;
  int *dim    = solver->dim_local;

  int index_outer[ndims], index_inter[ndims], bounds_outer[ndims], bounds_inter[ndims];
  _ArrayCopy1D_(dim,bounds_outer,ndims); bounds_outer[dir] =  1;
  _ArrayCopy1D_(dim,bounds_inter,ndims); bounds_inter[dir] += 1;

  done = 0; _ArraySetValue_(index_outer,ndims,0);
  while (!done) {
    _ArrayCopy1D_(index_outer,index_inter,ndims);
    for (index_inter[dir] = 0; index_inter[dir] < bounds_inter[dir]; index_inter[dir]++) {
      int p; _ArrayIndex1D_(ndims,bounds_inter,index_inter,0, p);
      double x = 0,y = 0; /* x,y coordinates of the interface */
      if (dir == 0) {
        /* x-interface */
        double x1, x2;
        _GetCoordinate_(0,index_inter[0]-1,dim,ghosts,solver->x,x1);
        _GetCoordinate_(0,index_inter[0]  ,dim,ghosts,solver->x,x2);
        x = 0.5 * ( x1 + x2 );
        _GetCoordinate_(1,index_inter[1],dim,ghosts,solver->x,y);
      } else if (dir == 1) {
        /* y-interface */
        _GetCoordinate_(0,index_inter[0],dim,ghosts,solver->x,x);
        double y1, y2;
        _GetCoordinate_(1,index_inter[1]-1,dim,ghosts,solver->x,y1);
        _GetCoordinate_(1,index_inter[1]  ,dim,ghosts,solver->x,y2);
        y = 0.5 * ( y1 + y2 );
      }
      double drift = FPPowerSystemDriftFunction(dir,params,x,y,t);
      for (v = 0; v < nvars; v++)  
        fI[nvars*p+v] = drift * (drift > 0 ? fL[nvars*p+v] : fR[nvars*p+v] );
    }
    _ArrayIncrementIndex_(ndims,bounds_outer,index_outer,done);
  }

  return(0);
}

FPPowerSystemPostStep()

int FPPowerSystemPostStep	(	double *	,
		void *	,
		void *	,
		double	,
		int
	)

Definition at line 8 of file FPPowerSystemPostStep.c.

{
  HyPar         *solver = (HyPar*)         s;
  MPIVariables  *mpi    = (MPIVariables*)  m;
  FPPowerSystem *params = (FPPowerSystem*) solver->physics;
  _DECLARE_IERR_;

  int *dim    = solver->dim_local;
  int ghosts  = solver->ghosts;
  int ndims   = solver->ndims;
  int index[ndims];

  double local_sum = 0;
  int done = 0; _ArraySetValue_(index,ndims,0);
  while (!done) {
    int p; _ArrayIndex1D_(ndims,dim,index,ghosts,p);
    double dxinv; _GetCoordinate_(0,index[0],dim,ghosts,solver->dxinv,dxinv);
    double dyinv; _GetCoordinate_(1,index[1],dim,ghosts,solver->dxinv,dyinv);
    local_sum     += (u[p] / (dxinv * dyinv));
    _ArrayIncrementIndex_(ndims,dim,index,done);
  }
  double local_integral = local_sum;
  double global_integral = 0; 
  IERR MPISum_double(&global_integral,&local_integral,1,&mpi->world); CHECKERR(ierr);
  params->pdf_integral = global_integral;

  return(0);
}

FPPowerSystemPrintStep()

int FPPowerSystemPrintStep	(	void *	,
		void *	,
		double
	)

Definition at line 5 of file FPPowerSystemPrintStep.c.

{
  HyPar          *solver = (HyPar*)         s;
  FPPowerSystem  *params = (FPPowerSystem*) solver->physics;
  printf("Domain integral of the probability density function: %1.16E\n",params->pdf_integral);
  return(0);
}

FPPowerSystemInitialize()

int FPPowerSystemInitialize	(	void *	s,
		void *	m
	)

Definition at line 20 of file FPPowerSystemInitialize.c.

{
  HyPar           *solver  = (HyPar*)         s;
  MPIVariables    *mpi     = (MPIVariables*)  m; 
  FPPowerSystem   *physics = (FPPowerSystem*) solver->physics;
  int             ferr;
  _DECLARE_IERR_;

  static int count = 0;

  if (solver->nvars != _MODEL_NVARS_) {
    fprintf(stderr,"Error in FPPowerSystemInitialize(): nvars has to be %d.\n",_MODEL_NVARS_);
    return(1);
  }
  if (solver->ndims != _MODEL_NDIMS_) {
    fprintf(stderr,"Error in FPPowerSystemInitialize(): ndims has to be %d.\n",_MODEL_NDIMS_);
    return(1);
  }

  /* default values of model parameters */
  physics->H   = 5.0;
  physics->D   = 5.0;
  physics->E   = 1.1358;
  physics->V   = 1.0;
  physics->g1  = 0.545;
  physics->g2  = 0.745;
  physics->Pm  = 0.9;
  physics->l   = 0.1;
  physics->q   = 1.0;
  physics->O_s = 120*(4.0*atan(1.0));
  physics->tf  = 0.1;
  physics->tcl = 0.2;

  /* reading physical model specific inputs - all processes */
  FILE *in;
  if ((!mpi->rank) && (!count)) printf("Reading physical model inputs from file \"physics.inp\".\n");
  in = fopen("physics.inp","r");
  if (!in) {
    fprintf(stderr,"Error: File \"physics.inp\" not found.\n");
    return(1);
  } else {
    char word[_MAX_STRING_SIZE_];
    ferr = fscanf(in,"%s",word); if (ferr != 1) return(1);
    if (!strcmp(word, "begin")){
        while (strcmp(word, "end")){
            ferr = fscanf(in,"%s",word); if (ferr != 1) return(1);
        if      (!strcmp(word, "inertia")) {ferr=fscanf(in,"%lf",&physics->H  );if(ferr!=1)return(1);}
        else if (!strcmp(word, "omega_s")) {ferr=fscanf(in,"%lf",&physics->O_s);if(ferr!=1)return(1);}
        else if (!strcmp(word, "E"      )) {ferr=fscanf(in,"%lf",&physics->E  );if(ferr!=1)return(1);}
        else if (!strcmp(word, "V"      )) {ferr=fscanf(in,"%lf",&physics->V  );if(ferr!=1)return(1);}
        else if (!strcmp(word, "g1"     )) {ferr=fscanf(in,"%lf",&physics->g1 );if(ferr!=1)return(1);}
        else if (!strcmp(word, "g2"     )) {ferr=fscanf(in,"%lf",&physics->g2 );if(ferr!=1)return(1);}
        else if (!strcmp(word, "D"      )) {ferr=fscanf(in,"%lf",&physics->D  );if(ferr!=1)return(1);}
        else if (!strcmp(word, "PM_min" )) {ferr=fscanf(in,"%lf",&physics->Pm );if(ferr!=1)return(1);}
        else if (!strcmp(word, "lambda" )) {ferr=fscanf(in,"%lf",&physics->l  );if(ferr!=1)return(1);}
        else if (!strcmp(word, "q"      )) {ferr=fscanf(in,"%lf",&physics->q  );if(ferr!=1)return(1);}
        else if (!strcmp(word, "tf"     )) {ferr=fscanf(in,"%lf",&physics->tf );if(ferr!=1)return(1);}
        else if (!strcmp(word, "tcl"    )) {ferr=fscanf(in,"%lf",&physics->tcl);if(ferr!=1)return(1);}
      }
      } else {
        fprintf(stderr,"Error: Illegal format in file \"physics.inp\".\n");
      return(1);
      }
  }
  fclose(in);

  if (!strcmp(solver->SplitHyperbolicFlux,"yes")) {
    if (!mpi->rank) {
      fprintf(stderr,"Error in FPPowerSystemInitialize: This physical model does not have a splitting ");
      fprintf(stderr,"of the hyperbolic term defined.\n");
    }
    return(1);
  }

  /* initializing physical model-specific functions */
  solver->ComputeCFL         = FPPowerSystemComputeCFL;
  solver->ComputeDiffNumber  = FPPowerSystemComputeDiffNumber;
  solver->FFunction          = FPPowerSystemAdvection;
  solver->GFunction          = FPPowerSystemDiffusion;
  solver->Upwind             = FPPowerSystemUpwind;
  solver->PostStep           = FPPowerSystemPostStep;
  solver->PrintStep          = FPPowerSystemPrintStep;

  /* Calculate and print the PDF integral of the initial solution */
  IERR FPPowerSystemPostStep(solver->u,solver,mpi,0.0,0);      CHECKERR(ierr);
  if (!mpi->rank) IERR FPPowerSystemPrintStep(solver,mpi,0.0); CHECKERR(ierr);
  
  count++;
  return(0);
}