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-rw-r--r--src/refinement/coupler2D.hh3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/refinement/coupler2D.hh b/src/refinement/coupler2D.hh
index 2218c28..91a7db8 100644
--- a/src/refinement/coupler2D.hh
+++ b/src/refinement/coupler2D.hh
@@ -33,7 +33,8 @@ namespace olb {
template <typename T, template<typename> class DESCRIPTOR>
T Coupler2D<T,DESCRIPTOR>::getScalingFactor() const
{
- return 4. - _coarse.getConverter().getLatticeRelaxationFrequency();
+ const T coarseTau = _coarse.getConverter().getLatticeRelaxationTime();
+ return (coarseTau - 0.25) / coarseTau;
}
template <typename T, template<typename> class DESCRIPTOR>