Numerically instability

[goodman249]

When I run FDS, The FDS version is 6.9.1. Could you check if any additional code needs to be added to allow the simulation to continue running? This would be very helpful for me. The model involves a significant increase in wind speed, and I'm not sure if this is the cause of the numerical instability.Thank you.
a2_b_3.out.txt
a2_b_3.txt

[mcgratta]

I'll take a look. Next time, submit something like this as an issue.

[goodman249]

Thank you so much for your reply! I will submit an issue next time.

[drjfloyd]

This is the third thread on this. It was opened as a discussion (#14591) and issue (#14590) last week.

In the issue you were requested to run with the current release.
In the discussion you were asked to keep things to one thread.

By splitting up discussion over multiple threads you will wind up wasting people's time by having those trying to help you do repetitive work.

[mcgratta]

The case has run out to 85 s and is still running with the latest version of the source code. My only advice to you is to remove the fine meshes. They are slowing your calculation by a factor of 16, at least, and I do not see their benefit. I am closing this discussion. As stated above, do not open multiple threads on the same issue or discussion.