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How can I keep residual under convergence

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Old   June 11, 2017, 09:37
Default How can I keep residual under convergence
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dilaw meda
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hello every one , i am using fluent to simulate an air jet in a room by the LES model , but i find it difficult to keep residual under 10^-3 . any suggestions please !!!
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Old   June 11, 2017, 14:11
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Probably the grid quality is limiting the further reduction of residuals.
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Old   June 11, 2017, 14:34
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dilaw meda
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Quote:
Originally Posted by LuckyTran View Post
Probably the grid quality is limiting the further reduction of residuals.
How can i fixe this problem ?
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Old   June 12, 2017, 01:36
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Try converting the mesh in octahedral type in fluent, I think it could help and is quite quick as first attempt, if doesn't work remesh and check aspect ratio and orthogonal quality

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