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Add gravity contributions to flux.

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Only really verified for incompressible data.  There are likely to be
programming errors.
This commit is contained in:
Bård Skaflestad 2011-01-16 21:21:06 +01:00
parent 157b86c21c
commit bd3cc50cfb
2 changed files with 18 additions and 9 deletions
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25
src/cfs_tpfa.c
View File

@ -581,6 +581,7 @@ compute_fpress(grid_t *G,
int np, int np,
const double *htrans, const double *htrans,
const double *pmobf, const double *pmobf,
const double *gravcap_f,
const double *cpress, const double *cpress,
const double *fflux, const double *fflux,
double *fpress) double *fpress)
@ -629,12 +630,13 @@ compute_flux(grid_t *G,
int np, int np,
const double *trans, const double *trans,
const double *pmobf, const double *pmobf,
const double *gravcap_f,
const double *cpress, const double *cpress,
double *fflux) double *fflux)
/* ---------------------------------------------------------------------- */ /* ---------------------------------------------------------------------- */
{ {
int f, c1, c2, p; int f, c1, c2, p;
double t, dp; double t, dp, g;
for (f = 0; f < G->number_of_faces; f++) { for (f = 0; f < G->number_of_faces; f++) {
c1 = G->face_cells[2*f + 0]; c1 = G->face_cells[2*f + 0];
@ -645,26 +647,28 @@ compute_flux(grid_t *G,
continue; continue;
} }
t = 0.0; t = g = 0.0;
for (p = 0; p < np; p++) { for (p = 0; p < np; p++) {
t += pmobf[f*np + p]; t += pmobf[f*np + p];
g += pmobf[f*np + p] * gravcap_f[f*np + p];
} }
t *= trans[f]; /* t *= trans[f]; */
if ((c1 >= 0) && (c2 >= 0)) { if ((c1 >= 0) && (c2 >= 0)) {
dp = cpress[c1] - cpress[c2]; dp = cpress[c1] - cpress[c2];
} else if (bc->type[f] == PRESSURE) { } else if (bc->type[f] == PRESSURE) {
if (c1 < 0) { if (c1 < 0) {
dp = bc->bcval[f] - cpress[c2]; dp = bc->bcval[f] - cpress[c2];
/* g = -g; */
} else { } else {
dp = cpress[c1] - bc->bcval[f]; dp = cpress[c1] - bc->bcval[f];
} }
} else { } else {
/* No BC -> no-flow (== zero pressure drop) */ /* No BC -> no-flow (== pressure drop offsets gravity) */
dp = 0.0; dp = -g / t;
} }
fflux[f] = t * dp; fflux[f] = trans[f] * (t*dp + g);
} }
} }
@ -798,6 +802,7 @@ cfs_tpfa_press_flux(grid_t *G,
int np, int np,
const double *trans, const double *trans,
const double *pmobf, const double *pmobf,
const double *gravcap_f,
const double *WI, const double *WI,
const double *wdp, const double *wdp,
struct cfs_tpfa_data *h, struct cfs_tpfa_data *h,
@ -810,7 +815,7 @@ cfs_tpfa_press_flux(grid_t *G,
/* Assign cell pressure directly from solution vector */ /* Assign cell pressure directly from solution vector */
memcpy(cpress, h->x, G->number_of_cells * sizeof *cpress); memcpy(cpress, h->x, G->number_of_cells * sizeof *cpress);
compute_flux(G, bc, np, trans , pmobf, cpress, fflux); compute_flux(G, bc, np, trans, pmobf, gravcap_f, cpress, fflux);
if ((W != NULL) && (WI != NULL) && (wdp != NULL)) { if ((W != NULL) && (WI != NULL) && (wdp != NULL)) {
assert (wpress != NULL); assert (wpress != NULL);
@ -832,12 +837,14 @@ cfs_tpfa_fpress(grid_t *G,
int np, int np,
const double *htrans, const double *htrans,
const double *pmobf, const double *pmobf,
const double *gravcap_f,
const double *cpress, const double *cpress,
const double *fflux, const double *fflux,
double *fpress) double *fpress)
/* ---------------------------------------------------------------------- */ /* ---------------------------------------------------------------------- */
{ {
compute_fpress(G, bc, np, htrans, pmobf, cpress, fflux, fpress); compute_fpress(G, bc, np, htrans, pmobf, gravcap_f,
cpress, fflux, fpress);
} }

2
src/cfs_tpfa.h
View File

@ -67,6 +67,7 @@ cfs_tpfa_press_flux(grid_t *G,
int np, int np,
const double *trans, const double *trans,
const double *pmobf, const double *pmobf,
const double *gravcap_f,
const double *WI, const double *WI,
const double *wdp, const double *wdp,
struct cfs_tpfa_data *h, struct cfs_tpfa_data *h,
@ -80,6 +81,7 @@ cfs_tpfa_fpress(grid_t *G,
int np, int np,
const double *htrans, const double *htrans,
const double *pmobf, const double *pmobf,
const double *gravcap_f,
const double *cpress, const double *cpress,
const double *fflux, const double *fflux,
double *fpress); double *fpress);