NavierStokes3DFunctions.c

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#include <stdio.h>
#include <math.h>
#include <basic.h>
#include <arrayfunctions.h>
#include <physicalmodels/navierstokes3d.h>
#include <hypar.h>

int NavierStokes3DRoeAverage(
                              double  *uavg, 
                              double  *uL,   
                              double  *uR,   
                              void    *p     
                            )
{
  NavierStokes3D *param  = (NavierStokes3D*) p;
  _NavierStokes3DRoeAverage_(uavg,_NavierStokes3D_stride_,uL,uR,param->gamma);
  return(0);
}

int NavierStokes3DComputePressure(  double*             P, 
                                    const double* const u, 
                                    void*               s  
                                  )
{
  HyPar          *solver = (HyPar*)   s;
  NavierStokes3D *param  = (NavierStokes3D*) solver->physics;
  int            i;

  int *dim    = solver->dim_local;
  int ghosts  = solver->ghosts;
  int ndims   = solver->ndims;
  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 idx; _ArrayIndex1DWO_(ndims,dim,index,offset,ghosts,idx);
    double rho, vx, vy, vz, e, pressure;
    _NavierStokes3DGetFlowVar_((u+_MODEL_NVARS_*idx),_NavierStokes3D_stride_,rho,vx,vy,vz,e,pressure,param->gamma);
    P[idx] = pressure;
    _ArrayIncrementIndex_(ndims,bounds,index,done);
  }
  
  return(0);
}

int NavierStokes3DComputeTemperature( double*             T, 
                                      const double* const u, 
                                      void*               s  
                                    )
{
  HyPar          *solver = (HyPar*)   s;
  NavierStokes3D *param  = (NavierStokes3D*) solver->physics;
  int            i;

  int *dim    = solver->dim_local;
  int ghosts  = solver->ghosts;
  int ndims   = solver->ndims;
  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 idx; _ArrayIndex1DWO_(ndims,dim,index,offset,ghosts,idx);
    double rho, vx, vy, vz, e, pressure;
    _NavierStokes3DGetFlowVar_((u+_MODEL_NVARS_*idx),_NavierStokes3D_stride_,rho,vx,vy,vz,e,pressure,param->gamma);
    T[idx] = pressure/rho;
    _ArrayIncrementIndex_(ndims,bounds,index,done);
  }
  
  return(0);
}