[Jaworski.Mike]

Hi all. I'm trying to develop a work flow for generating STL files in Gmsh for use with sHM with chtMultiRegionFoam. I am having a problem in that I seem to often be generating an error which is preventing sHM from working.

--> FOAM Warning :
From function autoSnapDriver::calcNearestSurface(..)
in file autoHexMesh/autoHexMeshDriver/autoSnapDriver.C at line 914
For point:22778 coordinate-0.1723479 -0.1434135 0.01919383) did not find any surface within:0.00375 meter.

^ This comes up a lot in the log file. When I googled for the error, I found nothing.

What I'm trying to do is place a cylinder in a box. So I have a separate STL for the cylinder ("heater") and one for the box with the cylinder removed ("bulkFluid"). I was trying to keep the base files as close to the tutorial in snappyChtMultiRegionFoam as possible.

sHM runs to completion, but there's a message that:
"Did not succesfully snap mesh. Giving up."

It then writes some ugly meshes in the 0.003 time folder.

I was able to get the cylinder to make a nice mesh when I wasn't trying to keep multiple regions for working with chtMultiRegionFoam. Now, however, it seems to be having a problem. I would have thought this was simple enough to almost exactly copying the tutorial would have been ok, apparently not. But, I may just be missing something obvious that someone else has found.

Any help is greatly appreciated.

Cheers,
Mike

PS blockMeshDict and snappyHexMeshDict attached. STLs are apparently too large.