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Merge pull request #1055 from andlaus/fix_rock_compressibility

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fix incorrect derivative  of rock compressibility w.r.t. pressure
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Bård Skaflestad 2016-07-20 11:32:19 +02:00 committed by GitHub
commit bb387e16f9
1 changed files with 2 additions and 1 deletions
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opm/core/props/rock/RockCompressibility.cpp
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@ -101,7 +101,8 @@ namespace Opm
if (p_.empty()) {
// Approximating poro multiplier with a quadratic curve,
// we must use its derivative.
return rock_comp_ + 2 * rock_comp_ * rock_comp_ * (pressure - pref_);
const double cpnorm = rock_comp_*(pressure - pref_);
return rock_comp_ + cpnorm*rock_comp_;
} else {
return Opm::linearInterpolationDerivative(p_, poromult_, pressure);
}