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Euler-Euler Model: reached singularity

Posted 2013年2月25日 GMT-5 19:33 Computational Fluid Dynamics (CFD), Studies & Solvers Version 4.2a 3 Replies

John McTernan
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I am running a Euler-Euler model and get a singularity error about six seconds into a 12 second analysis. It appears that there is a high velocity flair at an inlet when the singularity occurs. I have tried refining the mesh but the error returns. Any suggestions on how to relax convergence or to avoid this convergence issue? I am willing to accept some reduced accuracy in order to achieve convergence.
3 Replies Last Post 2013年3月2日 GMT-5 16:49
John McTernan
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Posted: 1 decade ago 2013年2月28日 GMT-5 18:15
Could really use some help on this. Any suggestions for avoiding singularities?
Could really use some help on this. Any suggestions for avoiding singularities?
Nagi Elabbasi Facebook Reality Labs
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Posted: 1 decade ago 2013年3月2日 GMT-5 00:04
Add inconsistent stabilization.
Add inconsistent stabilization.
John McTernan
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Posted: 1 decade ago 2013年3月2日 GMT-5 16:49
Thanks Nagi; I will give it a try. It seems that I am getting my singularity because my dispersed phase fraction becomes greater than one. Do you think enabling isotropic diffusion for the dispersed phase transport will help?
Thanks Nagi; I will give it a try. It seems that I am getting my singularity because my dispersed phase fraction becomes greater than one. Do you think enabling isotropic diffusion for the dispersed phase transport will help?

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