HyPar  1.0
Finite-Difference Hyperbolic-Parabolic PDE Solver on Cartesian Grids
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BCSupersonicInflow.c
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1 
6 #include <stdlib.h>
7 #include <basic.h>
8 #include <arrayfunctions.h>
9 #include <boundaryconditions.h>
10 
11 #include <physicalmodels/euler2d.h>
12 #include <physicalmodels/navierstokes3d.h>
13 
24 int BCSupersonicInflowU(
25  void *b,
26  void *m,
27  int ndims,
28  int nvars,
29  int *size,
30  int ghosts,
31  double *phi,
32  double waqt
33  )
34 {
35  DomainBoundary *boundary = (DomainBoundary*) b;
36 
37  if (ndims == 2) {
38 
39  double gamma;
40  gamma = boundary->gamma;
41  double inv_gamma_m1 = 1.0/(gamma-1.0);
42 
43  if (boundary->on_this_proc) {
44  int bounds[ndims], indexb[ndims];
45  _ArraySubtract1D_(bounds,boundary->ie,boundary->is,ndims);
46  _ArraySetValue_(indexb,ndims,0);
47  int done = 0;
48  while (!done) {
49  int p1; _ArrayIndex1DWO_(ndims,size,indexb,boundary->is,ghosts,p1);
50 
51  /* set the ghost point values */
52  double rho_gpt, uvel_gpt, vvel_gpt, energy_gpt, pressure_gpt;
53  rho_gpt = boundary->FlowDensity;
54  pressure_gpt = boundary->FlowPressure;
55  uvel_gpt = boundary->FlowVelocity[0];
56  vvel_gpt = boundary->FlowVelocity[1];
57  energy_gpt = inv_gamma_m1*pressure_gpt
58  + 0.5 * rho_gpt * (uvel_gpt*uvel_gpt + vvel_gpt*vvel_gpt);
59 
60  phi[nvars*p1+0] = rho_gpt;
61  phi[nvars*p1+1] = rho_gpt * uvel_gpt;
62  phi[nvars*p1+2] = rho_gpt * vvel_gpt;
63  phi[nvars*p1+3] = energy_gpt;
64 
65  _ArrayIncrementIndex_(ndims,bounds,indexb,done);
66  }
67  }
68 
69  } else if (ndims == 3) {
70 
71  double gamma;
72  gamma = boundary->gamma;
73  double inv_gamma_m1 = 1.0/(gamma-1.0);
74 
75  if (boundary->on_this_proc) {
76  int bounds[ndims], indexb[ndims];
77  _ArraySubtract1D_(bounds,boundary->ie,boundary->is,ndims);
78  _ArraySetValue_(indexb,ndims,0);
79  int done = 0;
80  while (!done) {
81  int p1; _ArrayIndex1DWO_(ndims,size,indexb,boundary->is,ghosts,p1);
82 
83  /* set the ghost point values */
84  double rho_gpt, uvel_gpt, vvel_gpt, wvel_gpt, energy_gpt, pressure_gpt;
85  rho_gpt = boundary->FlowDensity;
86  pressure_gpt = boundary->FlowPressure;
87  uvel_gpt = boundary->FlowVelocity[0];
88  vvel_gpt = boundary->FlowVelocity[1];
89  wvel_gpt = boundary->FlowVelocity[2];
90  energy_gpt = inv_gamma_m1*pressure_gpt
91  + 0.5 * rho_gpt
92  * (uvel_gpt*uvel_gpt + vvel_gpt*vvel_gpt + wvel_gpt*wvel_gpt);
93 
94  phi[nvars*p1+0] = rho_gpt;
95  phi[nvars*p1+1] = rho_gpt * uvel_gpt;
96  phi[nvars*p1+2] = rho_gpt * vvel_gpt;
97  phi[nvars*p1+3] = rho_gpt * wvel_gpt;
98  phi[nvars*p1+4] = energy_gpt;
99 
100  _ArrayIncrementIndex_(ndims,bounds,indexb,done);
101  }
102  }
103 
104  }
105  return(0);
106 }
_ArraySetValue_
#define _ArraySetValue_(x, size, value)
Definition: arrayfunctions.h:169
navierstokes3d.h
3D Navier Stokes equations (compressible flows)
_ArrayIncrementIndex_
#define _ArrayIncrementIndex_(N, imax, i, done)
Definition: arrayfunctions.h:126
boundaryconditions.h
Containts the structures and definitions for boundary condition implementation.
BCSupersonicInflowU
int BCSupersonicInflowU(void *, void *, int, int, int *, int, double *, double)
Definition: BCSupersonicInflow.c:24
_ArraySubtract1D_
#define _ArraySubtract1D_(x, a, b, size)
Definition: arrayfunctions.h:201
DomainBoundary
Structure containing the variables and function pointers defining a boundary.
Definition: boundaryconditions.h:68
_ArrayIndex1DWO_
#define _ArrayIndex1DWO_(N, imax, i, offset, ghost, index)
Definition: arrayfunctions.h:83
basic.h
Some basic definitions and macros.
arrayfunctions.h
Contains macros and function definitions for common array operations.