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adding some comments about getSegmentRateUpwinding()
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@ -1391,6 +1391,9 @@ namespace Opm
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const int comp_idx) const
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{
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const int seg_upwind = upwinding_segments_[seg];
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// the result will contain the derivative against GTotal in segment seg,
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// and the derivatives against WFrac GFrac in segment seg_upwind.
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// the derivative against SPres should be zero.
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return primary_variables_evaluation_[seg][GTotal] * volumeFractionScaled(seg_upwind, comp_idx);
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}
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@ -1984,6 +1987,8 @@ namespace Opm
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const EvalWell segment_rate = getSegmentRateUpwinding(seg, comp_idx);
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const int seg_upwind = upwinding_segments_[seg];
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// segment_rate contains the derivatives against GTotal in seg,
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// and WFrac and GFrac in seg_upwind
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resWell_[seg][comp_idx] -= segment_rate.value();
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duneD_[seg][seg][comp_idx][GTotal] -= segment_rate.derivative(GTotal + numEq);
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duneD_[seg][seg_upwind][comp_idx][WFrac] -= segment_rate.derivative(WFrac + numEq);
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@ -1998,11 +2003,13 @@ namespace Opm
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for (int comp_idx = 0; comp_idx < num_components_; ++comp_idx) {
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const EvalWell inlet_rate = getSegmentRateUpwinding(inlet, comp_idx);
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const int seg_upwind = upwinding_segments_[inlet];
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const int inlet_upwind = upwinding_segments_[inlet];
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// inlet_rate contains the derivatives against GTotal in inlet,
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// and WFrac and GFrac in inlet_upwind
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resWell_[seg][comp_idx] += inlet_rate.value();
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duneD_[seg][inlet][comp_idx][GTotal] += inlet_rate.derivative(GTotal + numEq);
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duneD_[seg][seg_upwind][comp_idx][WFrac] += inlet_rate.derivative(WFrac + numEq);
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duneD_[seg][seg_upwind][comp_idx][GFrac] += inlet_rate.derivative(GFrac + numEq);
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duneD_[seg][inlet_upwind][comp_idx][WFrac] += inlet_rate.derivative(WFrac + numEq);
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duneD_[seg][inlet_upwind][comp_idx][GFrac] += inlet_rate.derivative(GFrac + numEq);
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// pressure derivative should be zero
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}
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}
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