BF Error, Cannot find patchField entry for boundingbox

Replies to This Discussion

Permalink Reply by Mostapha Sadeghipour Roudsari on March 21, 2017 at 4:02pm

Can you share the file or the case folder? Is it an indoor case? Looks like the boundingbox still exist in your case, which should not, and OpenFOAM is looking to find for the boundary condition and it can't find it.

Permalink Reply by OH_Dimore on March 21, 2017 at 4:21pm

Hi, Thanks for Your reply.

Please find the case here.

thanks a lot.

\D

Attachments:

• cfd_Curve01.gh, 412 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on March 25, 2017 at 1:55pm

There was a couple of issues in your file:

1. The major problem was that the input geometries were open. You needed to add the surfaces around the inlet and outlet to the model.

2. locationInMesh was not set. Butterfly sets the locationInMesh by default to the center of the case which in this case was outside the volume.

You also need to create a much denser mesh. In cases like your case you can add layers to surfaces for snappyHexMesh. I attached a modified version of your file which runs but didn't play with the quality of the mesh.

Attachments:

• cfd_Curve02.gh, 415 KB

Permalink Reply by OH_Dimore on March 25, 2017 at 4:08pm

Hi,great, now I understand the problems.

I opened that and set the location mesh inside the case.

Thank you so much For your help.
regards.
d