# How can I set the converge criteria properly?

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 September 7, 2007, 08:39 How can I set the converge criteria properly? #1 Alina Guest   Posts: n/a 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?

 September 7, 2007, 09:45 Re: How can I set the converge criteria properly? #2 Joe Guest   Posts: n/a I dont understand your question? Are you asking what are appropriate convergence criteria?

 September 7, 2007, 09:52 Re: How can I set the converge criteria properly? #3 Alina Guest   Posts: n/a 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.

 September 7, 2007, 16:55 Re: How can I set the converge criteria properly? #4 JAI SHANKAR V P[ Guest   Posts: n/a 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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