Errors while running the tutorials

jair0113 · April 21, 2021, 2:38am

Good evening,

I am new to the MFIX environment and I am doing my best to learn how to use the tool.

I am currently working on the tutorial 3.5 “Three Dimensional Fluidized Bed” and after I input all the required parameters, I get the following error:

ERROR cartesian_grid\pvd_mod.f:56
BACKGROUND RESULT.pvdBACKGROUND RESULT.pvd

I have changed the geometry to fit the domain, to be smaller than the domain, flip the normals but nothing really works.

please help.

thanks

kjetilbmoe · August 20, 2021, 12:21pm

I have spent a not insignificant amount of time to troubleshoot this procedure myself now. Not sure if this is exactly the same as you describe here, but it might be. I had a recurring error on not using a BC_NSW, and finally found out that the tutorial does not mention that you should actually tick the “Select facets” box, and so the region changes from “box” to “STL”. It might be that this was auto-ticked in previous versions perhaps.
(It is also possible to click the images in the tutorial to see them in full.)

cgw · August 24, 2021, 6:24pm

Thanks, I have added the missing step to the tutorials, this will be included in the next release.

– Charles

kjetilbmoe · August 24, 2021, 6:47pm

Great.
While you’re in there, there is a typo in tutorial section 3.3.5 also, see below. I’m pretty sure it should say “To X”.