Unstable Simulation

Provides a system for patient-specific cardiovascular modeling and simulation.
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Hannah Cebull
Posts: 13
Joined: Thu Aug 24, 2017 11:45 am

Unstable Simulation

Post by Hannah Cebull » Sun May 28, 2023 10:42 am

Hello,

I am running a pretty standard CFD simulation on 2 cases of a human aorta, but in my final results, I have unstable flow and in particular, there are "hot spots" of erroneously high velocities (see photo below). Do you have any insight or suggestions of how to solve this issue? I followed the same methods I usually do and I've not run into this issue before, so I'm a little stumped.

I appreciate any advice you have.

Thanks,
Hannah
Screen Shot 2023-05-28 at 13.40.05.png
Screen Shot 2023-05-28 at 13.40.05.png (521.37 KiB) Viewed 228 times
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David Parker
Posts: 1736
Joined: Tue Aug 23, 2005 2:43 pm

Re: Unstable Simulation

Post by David Parker » Tue May 30, 2023 7:56 pm

Hi Hannah,

I am guessing that this is a problem with your mesh. Are the simulations converging?

Cheers,
Dave
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