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how to lessen initial residuals of pressure?

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Old   February 23, 2013, 04:20
Default how to lessen initial residuals of pressure?
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Ehsan
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i had high initial residual of Uy and p.i fined the mesh in y direction more and Uy decreased now and is good.what can i do about p to decrease its residuals now?
I've lowered Co but didn't affect p.what to do?
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Old   February 26, 2013, 18:55
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all idea's are appreciated,is p residual related to mesh like U?or time step?what solver or scheme or anything else affect on residuals of p?
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Old   March 8, 2013, 05:23
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it'll be a valuable to documet thread if it has some nice remarks and ideas.
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Old   March 29, 2013, 02:17
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does anyone have any opinion about factors have effect on p residuals?
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Old   February 19, 2016, 08:02
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Hi Ehsan,
Did you find any solution for decreasing initial residual of p_rgh ?

Thanks.
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Old   February 20, 2016, 09:52
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Hi Arsalan
yes sure but don't remember how exactly. I think it was due to BC. I'll see and tell you if found more
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Old   February 20, 2016, 13:44
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Hi Ehsan
Thank you very much for your attention.
Could you explain to me the importance of initial residual in a transient problem?
I'm a bit confused about identifying the convergence criteria and solution quality in my transient simulations.

Best regards,
Arsalan.
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