directMappedPatch in OpenFoam 1.6
 

Hi!

I'm trying to use directMappedPatch in order to sample the fluid-velocity
at point x/y/z to a boundary (by using an offset).

I get the message:

FOAM Warning :
From function directMappedPatchBase::calcMapping() const
in file directMapped/directMappedPolyPatch/directMappedPatchBase.C at line 451
The actual cell/face centres picked up using offset (0 0.33 0) are not
on a single plane. This might give numerical problems.
At patchface (-70.1184 25.6462 2.17446) the sampled cell/face (-70.12 26.0355 2.17448)
is not on a plane 0.390814 offset from the patch.
You might want to shift your plane offset. Set the debug flag to get a dump of sampled cells.


Does somebody know this message?

Best Regards

olhe

I got a similar error message with directmappedpatch, but i solved by using the updated version of openfoam 1.6.x .
there should be a bug in directmappedpatch of version 1.6 .

hope this helps.

marco

Hi,

I'm working with OpenFOAM 1.6. You get this warning message, but mapping works in OF 1.6. I solved different simulations and validated it (e.d. laminar pipe flow).

Regards Thomas