Mathc initiation/Fichiers h : c64a7
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x_fluyzx.h |
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/* --------------------------------- */
/* save as x_fluyzx.h */
/* --------------------------------- */
double flux_y_dydzdx(
double (*P_M)(double x, double y, double z),
double (*P_N)(double x, double y, double z),
double (*P_P)(double x, double y, double z),
double (*P_u)(double x, double z),
double (*P_v)(double x, double z),
int ny,
double z,
double x
)
{
pt3d n;
int i = 0;
double m = 0.;
double M = 0.;
for(i = 0; i <= ny; i++)
{
if(i ==0 || i== ny){m = 1.;}
else if(fmod(i,2) == 0){m = 2.;}
else {m = 4.;}
n.x = x;
n.y = ((*P_u)(x,z)) + i*(((*P_v)(x,z))-((*P_u)(x,z)))/ny;
n.z = z;
M += m * (fxyz_x((*P_M),H,n) + fxyz_y((*P_N),H,n) + fxyz_z((*P_P),H,n)) ;
}
return( ((((*P_v)(x,z)) -((*P_u)(x,z)))*M) / (3*ny) );
}
/* --------------------------------- */
double flux_z_dydzdx(
double (*P_M)(double x, double y, double z),
double (*P_N)(double x, double y, double z),
double (*P_P)(double x, double y, double z),
double (*P_u)(double x, double z),
double (*P_v)(double x, double z),
int ny,
double (*P_s)(double x),
double (*P_t)(double x),
int nz,
double x
)
{
int i = 0;
double m = 0.;
double M = 0.;
for(i = 0; i <= nz; i++)
{
if(i ==0 || i== nz){m = 1.;}
else if(fmod(i,2) == 0){m = 2.;}
else {m = 4.;}
M += m * flux_y_dydzdx(
(*P_M),
(*P_N),
(*P_P),
(*P_u),
(*P_v),
ny,
(((*P_s)(x))+i*(((*P_t)(x))-((*P_s)(x)))/nz),
x);
}
return( ((((*P_t)(x)) -((*P_s)(x)))*M) / (3*nz) );
}
/* --------------------------------- */
double flux_dydzdx(
double (*P_M)(double x, double y, double z),
double (*P_N)(double x, double y, double z),
double (*P_P)(double x, double y, double z),
double (*P_u)(double x, double z),
double (*P_v)(double x, double z),
int ny,
double (*P_s)(double x),
double (*P_t)(double x),
int nz,
double ax,
double bx,
int nx
)
{
int i = 0;
double m = 0.;
double M = 0.;
for(i = 0; i <= nx; i++)
{
if(i ==0 || i== nx){m = 1.;}
else if(fmod(i,2) == 0){m = 2.;}
else {m = 4.;}
M += m * flux_z_dydzdx(
(*P_M),
(*P_N),
(*P_P),
(*P_u),
(*P_v),
ny,
(*P_s),
(*P_t),
nz,
(ax+i*(bx-ax)/nx));
}
return( ((bx -ax)*M) / (3*nx) );
}
/* --------------------------------- */
/* --------------------------------- */
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