init.c

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#include "pluto.h"

/* ********************************************************************* */
void Init (double *us, double x, double y, double z)
/*
 *
 *
 *
 *********************************************************************** */
{
  double r, x0=1,y0=1,scrh;

  g_gamma = 1.4;

  r = sqrt( (x-x0)*(x-x0) + (y-y0)*(y-y0));
  us[RHO] = 1.0;
  us[VX1] = 0.0;
  us[VX2] = 0.0;
  us[VX3] = 0.0;
  us[TRC] = 0.0;

  if (x<0.1){
    us[PRS] = 1.e3;
  }else if(x<0.9) {
    us[PRS] = 1.e-2;
  }else {
    us[PRS] = 1.e2;
  }

}

/* ********************************************************************* */
void Analysis (const Data *d, Grid *grid)
/* 
 *
 *
 *********************************************************************** */
{

}

/* ********************************************************************* */
void UserDefBoundary (const Data *d, RBox *box, int side, Grid *grid) 
/*! 
 *  Assign user-defined boundary conditions.
 *
 * \param [in,out] d  pointer to the PLUTO data structure containing
 *                    cell-centered primitive quantities (d->Vc) and 
 *                    staggered magnetic fields (d->Vs, when used) to 
 *                    be filled.
 * \param [in] box    pointer to a RBox structure containing the lower
 *                    and upper indices of the ghost zone-centers/nodes
 *                    or edges at which data values should be assigned.
 * \param [in] side   specifies the boundary side where ghost zones need
 *                    to be filled. It can assume the following 
 *                    pre-definite values: X1_BEG, X1_END,
 *                                         X2_BEG, X2_END, 
 *                                         X3_BEG, X3_END.
 *                    The special value side == 0 is used to control
 *                    a region inside the computational domain.
 * \param [in] grid  pointer to an array of Grid structures.
 *
 *********************************************************************** */
{ }