how to visualize time-average velocity field on adaptive mesh

[bdaisyjin]

Dear all,

I want to visualize the time-averaged velocity field but the velocity data are on adaptive mesh. I tried to use average_over_time(U, a, b, 1) but it doesn't work. Can you tell me how to solve it?

Best,
Bowen.

[markcmiller86]

Can you please elaborate on what you mean by "...it doesn't work". What did you try (version of VisIt, type of database, plots, operators, expressions)? What happened (error messages, incorrect results, etc)?

If mesh type is the cause, would it be practical to use resample operator onto a regular mesh and/or fix the level of refinement to just one level using Subset controls?

[bdaisyjin]

I'm sorry I didn't clearly express my question. In VisIt 3.3.3 (Win11), I added a new expression ave_ux, defined as average_over_time(U_x, 1, 9, 1). However, when plotting, I get an error message: The compute engine running on Bowen has exited abnormally. Shortly thereafter, the following occurred... The Pseudocolor plot of "ave_ux" for the file "H:\Result\B&B\1foil-deflection\freq\f=1.00\f=1.00t=20\viz_foil2d\dumps.visit" could not be generated by the compute engine on host "localhost".

The data is : https://drive.google.com/file/d/1eDKzaBXpvwMXFZ_sr3v8FGlDCDOu4Vmf/view?usp=sharing

Could you tell me how to solve this problem? Thanks a lot.

Best,
Bowen.

[markcmiller86]

Apologies for delay in responding. I am unable to follow the link to your data. Can you attach an example here instead?

The engine is crasing for some reason. If you run in debug mode, you could attache the .vlog files here and that would help diagnose cause too. Since you are on Windows, if you launch VisIt by double-clicking an icon, you may need to edit Properties of the launch icon to add -debug 5 to the command that launches VisIt.