nearWallFields does not produce correct sampling location
nearWallFields uses mappedPatchBase::facePoint to find a starting location which is on a tet-face when using the FACE_DIAG cell decomposition. Even on e.g. pitzDaily this might not find a point for all wall faces. Run e.g. nearWallFields with
type nearWallFields; fields ( (U UNear) ); // Patches/groups to sample (regular expressions) patches (wall); // Distance to sample distance 0.00001;
the fourth face on the top-wall is not found correctly and it falls back to the cell centre.
- the destination for tracking is calculated from the fall-back cell centre in above case instead of the wanted location on the wall face.