Simulation shows NAN

Provides a system for patient-specific cardiovascular modeling and simulation.
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Dai Xiao Dai
Posts: 54
Joined: Thu Jan 04, 2018 12:49 am

Simulation shows NAN

Post by Dai Xiao Dai » Sat May 04, 2019 8:51 am

Dear developer,

I am trying to do one case with different meshes. I created three meshes for one model. There were 1,502,817; 485,288 and 707,893 elements. I use the same boundary condition. However, only 1,502,817 finished the simulation. 485,288 showed NAN at 581 step and 707,893 showed NAN at 1100 step.
I wonder is there a problem with the mesh?

Thank you very much.
Have a nice day. -V-

Yours,
Dai
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David Parker
Posts: 1677
Joined: Tue Aug 23, 2005 2:43 pm

Re: Simulation shows NAN

Post by David Parker » Mon May 13, 2019 8:47 am

Hello Dai,

What solver are you using and what OS are you running on?

There might be a problem with your mesh although I think that you would get bad results right away. Try to reduce your time step and see if that helps.

Cheers,
Dave
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