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Use average density for hydro p-drop

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This commit is contained in:
Stein Krogstad 2023-05-10 10:31:49 +02:00
parent 8ee3493aed
commit 0417f101bf
5 changed files with 23 additions and 13 deletions
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12
opm/simulators/wells/MultisegmentWellAssemble.cpp
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@ -219,14 +219,18 @@ assemblePressureLoss(const int seg,
template<class FluidSystem, class Indices, class Scalar> template<class FluidSystem, class Indices, class Scalar>
void MultisegmentWellAssemble<FluidSystem,Indices,Scalar>:: void MultisegmentWellAssemble<FluidSystem,Indices,Scalar>::
assembleHydroPressureLoss(const int seg, assembleHydroPressureLoss(const int seg,
const int seg_upwind, const int seg_outlet,
const EvalWell& hydro_pressure_drop, const EvalWell& hydro_pressure_drop_seg,
const EvalWell& hydro_pressure_drop_outlet,
Equations& eqns1) const Equations& eqns1) const
{ {
MultisegmentWellEquationAccess<Scalar,numWellEq,Indices::numEq> eqns(eqns1); MultisegmentWellEquationAccess<Scalar,numWellEq,Indices::numEq> eqns(eqns1);
eqns.residual()[seg][SPres] -= hydro_pressure_drop.value(); eqns.residual()[seg][SPres] -= (hydro_pressure_drop_seg.value() + hydro_pressure_drop_outlet.value());
for (int pv_idx = 0; pv_idx < numWellEq; ++pv_idx) { for (int pv_idx = 0; pv_idx < numWellEq; ++pv_idx) {
eqns.D()[seg][seg][SPres][pv_idx] -= hydro_pressure_drop.derivative(pv_idx + Indices::numEq); eqns.D()[seg][seg][SPres][pv_idx] -= hydro_pressure_drop_seg.derivative(pv_idx + Indices::numEq);
}
for (int pv_idx = 0; pv_idx < numWellEq; ++pv_idx) {
eqns.D()[seg][seg_outlet][SPres][pv_idx] -= hydro_pressure_drop_outlet.derivative(pv_idx + Indices::numEq);
} }
} }

7
opm/simulators/wells/MultisegmentWellAssemble.hpp
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@ -89,9 +89,10 @@ public:
void assembleHydroPressureLoss(const int seg, void assembleHydroPressureLoss(const int seg,
const int seg_upwind, const int seg_outlet,
const EvalWell& hydro_pressure_drop, const EvalWell& hydro_pressure_drop_seg,
Equations& eqs1) const; const EvalWell& hydro_pressure_drop_outlet,
Equations& eqns1) const;
void assemblePressureEqExtraDerivatives(const int seg, void assemblePressureEqExtraDerivatives(const int seg,
const int seg_upwind, const int seg_upwind,

9
opm/simulators/wells/MultisegmentWellEval.cpp
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@ -261,10 +261,13 @@ assembleDefaultPressureEq(const int seg,
} }
// Do separately since different organization of derivatives // Do separately since different organization of derivatives
const auto hydro_pressure_drop = segments_.getHydroPressureLoss(seg); const int seg_outlet = this->segmentNumberToIndex(this->segmentSet()[seg].outletSegment());
const auto hydro_pressure_drop1 = segments_.getHalfHydroPressureLoss(seg, seg);
const auto hydro_pressure_drop2 = segments_.getHalfHydroPressureLoss(seg, seg_outlet);
MultisegmentWellAssemble<FluidSystem,Indices,Scalar>(baseif_). MultisegmentWellAssemble<FluidSystem,Indices,Scalar>(baseif_).
assembleHydroPressureLoss(seg, seg_upwind, hydro_pressure_drop, linSys_); assembleHydroPressureLoss(seg, seg_outlet, hydro_pressure_drop1, hydro_pressure_drop2, linSys_);
segments.pressure_drop_hydrostatic[seg] = hydro_pressure_drop.value();
segments.pressure_drop_hydrostatic[seg] = hydro_pressure_drop1.value() + hydro_pressure_drop2.value();
} }
template<typename FluidSystem, typename Indices, typename Scalar> template<typename FluidSystem, typename Indices, typename Scalar>

5
opm/simulators/wells/MultisegmentWellSegments.cpp
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@ -321,10 +321,11 @@ updateUpwindingSegments(const PrimaryVariables& primary_variables)
template<class FluidSystem, class Indices, class Scalar> template<class FluidSystem, class Indices, class Scalar>
typename MultisegmentWellSegments<FluidSystem,Indices,Scalar>::EvalWell typename MultisegmentWellSegments<FluidSystem,Indices,Scalar>::EvalWell
MultisegmentWellSegments<FluidSystem,Indices,Scalar>:: MultisegmentWellSegments<FluidSystem,Indices,Scalar>::
getHydroPressureLoss(const int seg) const getHalfHydroPressureLoss(const int seg,
const int seg_side) const
{ {
//const int seg_upwind = upwinding_segments_[seg]; //const int seg_upwind = upwinding_segments_[seg];
return densities_[seg] * well_.gravity() * depth_diffs_[seg]; return 0.5*densities_[seg_side] * well_.gravity() * depth_diffs_[seg];
} }

3
opm/simulators/wells/MultisegmentWellSegments.hpp
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@ -51,7 +51,8 @@ public:
//! \brief Update upwinding segments. //! \brief Update upwinding segments.
void updateUpwindingSegments(const PrimaryVariables& primary_variables); void updateUpwindingSegments(const PrimaryVariables& primary_variables);
EvalWell getHydroPressureLoss(const int seg) const; EvalWell getHalfHydroPressureLoss(const int seg,
const int seg_side) const;
//! Pressure difference between segment and perforation. //! Pressure difference between segment and perforation.
Scalar getPressureDiffSegPerf(const int seg, Scalar getPressureDiffSegPerf(const int seg,