Commit 107b9370 authored by Henry Weller's avatar Henry Weller
Browse files

PairCollision: stabilize normalization of the force direction for low force

Resolves bug-report
parent aacaa9c0
......@@ -246,7 +246,7 @@ void Foam::PairCollision<CloudType>::wallInteraction()
vector pW = nearPt - pos;
scalar normalAlignment = normal & pW/mag(pW);
scalar normalAlignment = normal & pW/(mag(pW) + ROOTSMALL);
// Find the patchIndex and wallData for WallSiteData object
label patchI = patchID[realFaceI - mesh.nInternalFaces()];
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