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-   -   How can I set the converge criteria properly? (https://www.cfd-online.com/Forums/fluent/45962-how-can-i-set-converge-criteria-properly.html)

 Alina September 7, 2007 08:39

How can I set the converge criteria properly?

Hi, I'm a new learner of FLUENT. When I was to set the converge criteria, I find that the criteria of fluent is a sum of residuals at all the cells if it is unscaled. And if it is scaled, the criteria becomes the maxium of the first 5 sum redisuals divide the sum of the redisuals of the current interate. Anyway, I can't get a direct criteria that when all the redisuals meet it, the interate stops. Is there a way to define the criteria like this?

 Joe September 7, 2007 09:45

Re: How can I set the converge criteria properly?

I dont understand your question? Are you asking what are appropriate convergence criteria?

 Alina September 7, 2007 09:52

Re: How can I set the converge criteria properly?

Yes. For example, I want the residual of continuity to be smaller than 1e-5 at each cell. How can I set the criteria? Both scale and unscale or normalization do not meet my request.

 JAI SHANKAR V P[ September 7, 2007 16:55

Re: How can I set the converge criteria properly?

I AM JAI SHANKAR V P . I AM CURRENTLY WORKING AS SENIOR LECTURER WITH SNMIMT IN INDIA .I AM CURRENTLY COMPLEATING MY MASTERS IN PRODUCTION ENGINEERING WITH COCHIN UNIVERSITY OF SCIEANCE AND TECHNOLOGY , KOCHI, KERALA , INDIA

I AM VERY MUCH INTRESTED IN THE SUBJECT CFD

CAN YOU HELP[ ME STUDY THE SAME. PLEASE alina pls .i can do all sorts of help u want pls.MY EMAIL ID IS shankarvp@yahoo.co.in

with regards

jvp

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