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conversing the face water velocity to shear rate.

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Kai Bao
2015-06-05 15:30:49 +02:00
parent f92459807c
commit 93cdeac34a
1 changed files with 45 additions and 0 deletions
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45
opm/polymer/fullyimplicit/BlackoilPolymerModel_impl.hpp
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@@ -1098,6 +1098,51 @@ namespace Opm {
for (int i = 0; i < nface; ++i) {
water_vel[i] = water_vel[i] / (b_faces[i] * phiavg[i] * internal_face_areas[i]);
}
// for SHRATE keyword treatment
if (has_shrate_) {
// get the upwind water saturation
const Opm::PhaseUsage pu = fluid_.phaseUsage();
const ADB& sw = state.saturation[pu.phase_pos[ Water ]];
const ADB& sw_upwind_adb = upwind.select(sw);
std::vector<double> sw_upwind;
sw_upwind.resize(sw_upwind_adb.size());
std::copy(&(sw_upwind_adb.value()[0]), &(sw_upwind_adb.value()[0]) + sw_upwind_adb.size(), sw_upwind.begin());
// get the absolute permeability for the faces
std::vector<double> perm;
perm.resize(transi.size());
for (size_t i = 0; i < transi.size(); ++i) {
perm[i] = transi[i] / internal_faces[i];
}
// get the upwind krw_eff
const ADB& krw_adb = upwind.select(krw_eff);
std::vector<double> krw_upwind;
krw_upwind.resize(krw_adb.size());
std::copy(&(krw_adb.value()[0]), &(krw_adb.value()[0]) + krw_adb.size(), krw_upwind.begin());
const double& shrate_const = polymer_props_ad_.shrate();
const double epsilon = std::numeric_limits<double>::epsilon();
// std::cout << "espilon is " << epsilon << std::endl;
// std::cin.ignore();
for (size_t i = 0; i < water_vel.size(); ++i) {
// assuming only when upwinding water saturation is not zero
// there will be non-zero water velocity
if (std::abs(water_vel[i]) < epsilon) {
continue;
}
water_vel[i] *= shrate_const * std::sqrt(phiavg[i] / (perm[i] * sw_upwind[i] * krw_upwind[i]));
}
}
}
template<class Grid>