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Add proper support for source terms.

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This fixes the problem with infinite tofs at sinks.
This commit is contained in:
Atgeirr Flø Rasmussen 2012-09-25 14:00:17 +02:00
parent ddf177b4c5
commit b9a2c14113
2 changed files with 27 additions and 7 deletions
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25
opm/core/transport/reorder/TransportModelTracerTof.cpp
View File

@ -21,6 +21,8 @@
#include <opm/core/grid.h>
#include <opm/core/utility/ErrorMacros.hpp>
#include <algorithm>
#include <numeric>
#include <cmath>
namespace Opm
{
@ -37,15 +39,25 @@ namespace Opm
/// Solve for time-of-flight at next timestep.
/// \param[in] darcyflux Array of signed face fluxes.
/// \param[in] porevolume Array of pore volumes.
/// \param[in, out] tof Array of time-of-flight values.
/// \param[in] darcyflux Array of signed face fluxes.
/// \param[in] porevolume Array of pore volumes.
/// \param[in] source Transport source term.
/// \param[out] tof Array of time-of-flight values.
void TransportModelTracerTof::solveTof(const double* darcyflux,
const double* porevolume,
const double* source,
std::vector<double>& tof)
{
darcyflux_ = darcyflux;
porevolume_ = porevolume;
source_ = source;
#ifndef NDEBUG
// Sanity check for sources.
const double cum_src = std::accumulate(source, source + grid_.number_of_cells, 0.0);
if (std::fabs(cum_src) > *std::max_element(source, source + grid_.number_of_cells)*1e-2) {
THROW("Sources do not sum to zero: " << cum_src);
}
#endif
tof.resize(grid_.number_of_cells);
std::fill(tof.begin(), tof.end(), 0.0);
tof_ = &tof[0];
@ -58,8 +70,13 @@ namespace Opm
void TransportModelTracerTof::solveSingleCell(const int cell)
{
// Compute flux terms.
// Sources have zero tof, and therefore do not contribute
// to upwind_term. Sinks on the other hand, must be added
// to the downwind_flux (note sign change resulting from
// different sign conventions: pos. source is injection,
// pos. flux is outflow).
double upwind_term = 0.0;
double downwind_flux = 0.0;
double downwind_flux = std::max(-source_[cell], 0.0);
for (int i = grid_.cell_facepos[cell]; i < grid_.cell_facepos[cell+1]; ++i) {
int f = grid_.cell_faces[i];
double flux;

9
opm/core/transport/reorder/TransportModelTracerTof.hpp
View File

@ -40,11 +40,13 @@ namespace Opm
TransportModelTracerTof(const UnstructuredGrid& grid);
/// Solve for time-of-flight at next timestep.
/// \param[in] darcyflux Array of signed face fluxes.
/// \param[in] porevolume Array of pore volumes.
/// \param[in, out] tof Array of time-of-flight values.
/// \param[in] darcyflux Array of signed face fluxes.
/// \param[in] porevolume Array of pore volumes.
/// \param[in] source Transport source term.
/// \param[out] tof Array of time-of-flight values.
void solveTof(const double* darcyflux,
const double* porevolume,
const double* source,
std::vector<double>& tof);
private:
@ -55,6 +57,7 @@ namespace Opm
const UnstructuredGrid& grid_;
const double* darcyflux_; // one flux per grid face
const double* porevolume_; // one volume per cell
const double* source_; // one volumetric source term per cell
double* tof_;
};