postChannel works fine on tuto
 

postChannel works fine on tutorial case. Also it works on a half-channel (2 blocks in y direction), full channel 4 blocks (ordered in y direction). I tried it on half-channel (1 block) and it gave me the following error:

I checked the fields:

• no nan.
• paraFoam can visualize them.

.

Any idea what does that error message imply?

Best regards,
Maka.

error message reproduced on ch
 

error message reproduced on channel395 tutorial

to reproduce the error message on channel395 tutorial:

(1) make a channel of one block. http://www.cfd-online.com/OpenFOAM_D...hment_icon.gif blockMeshDict
(2) remove boundary file.
(3) replace 0 folder with a copy of 0.org (no mapFields related issues).
(4) run and write 5 times step. http://www.cfd-online.com/OpenFOAM_D...hment_icon.gif controlDict
(5) run postChannel

related threads: 1

Thanks.
Best regards,
Maka.

Problem solved. That error
 

Problem solved.

That error message was due to a mismatch between postChannelDict entries and the blockMeshDict.

postChannelDict requires entering the no cells in each block (blocks are only allowed normal to y direction), manually and it does not read it automatically from the mesh.

It is typical that you change the grid resolution or number of blocks in blockMeshDict and forget to update the postChannelDict accordingly which results in either bad collapsed profiles or the above error.

Best regards,
Maka.

related threads: 1
 

related threads: 1

Hi Maka,
i follow your instruction, but I receive this error:

and I can't view anythings new with paraview.

Any ideas?

Thank you

MT

I solve the problem... I download the OF patch (OpenFOAM-1.5.x) and after remake all, postChannel works fine.

The problem was in the postChannelDict, infact the new version is a little bit different.

Best regards

MT