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Convergence problem

Posted Apr 13, 2020, 6:17 p.m. EDT Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Heat Transfer Version 5.5 1 Reply

Reza Danesh
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Hi,

I am running a natural convection model and I put the material properties as a function of temperature (interpolation) and piecewise functions. I got results with constant number for the properties which I tetsed for making sure my model is working propely. But when I am using the functions, the simulation enters in a no-end loop. What is the best solution to solve this problem?

Thanks, Reza

1 Reply Last Post Apr 14, 2020, 2:15 p.m. EDT
Alexandre Arsenault
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Posted: 5 years ago Apr 14, 2020, 2:15 p.m. EDT

Hello,

Not entirely sure what you are trying to do here, but are you sure that your functions are smooth and do not vary too drastically? This could have an affect on the convergence.

Cheers,

Alex

Hello, Not entirely sure what you are trying to do here, but are you sure that your functions are smooth and do not vary too drastically? This could have an affect on the convergence. Cheers, Alex

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