Bug of new version MFiX-20.3.1 when define specific temperature wall BC

chunlei · October 29, 2020, 1:23pm

When the specific temperature wall BC is defined, the latest version(MFiX-20.3.1) will occur sever bugs in a few seconds.

It seems related to the this line in calc_collision_wall_mod.f

The same deck file went well in older version (mfix-20.1.2)

ferdy4985 · June 9, 2021, 9:52am

I noticed the same issue in versions 21.1.2 and 21.1.4.

Any idea of the source ot the problem or suggestion to solve it?

cgw · June 18, 2021, 6:38pm

@ferdy4985 @chunlei Please attach the input files that trigger this error. Do you have energy equations enabled?

– Charles

ferdy4985 · July 6, 2021, 11:19am

Hi Charles,

sorry for the late reply, here is the case. Energy is equation is enabled.
heat.mfx (18.1 KB)

cgw · July 7, 2021, 9:22pm

This bug has been fixed recently and the fix will be included in the 21.2 release that’s coming out in a few weeks.

If you can’t wait or would like to help us test, you can apply this patch:

ferdy4985 · July 8, 2021, 11:38am

Thanks a lot Charles, just tried it and seems to work.