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February 23, 2013, 03:20 |
how to lessen initial residuals of pressure?
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#1 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
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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February 26, 2013, 17:55 |
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#2 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
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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March 8, 2013, 04:23 |
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#3 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
it'll be a valuable to documet thread if it has some nice remarks and ideas.
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March 29, 2013, 01:17 |
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#4 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
does anyone have any opinion about factors have effect on p residuals?
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February 19, 2016, 07:02 |
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#5 |
Member
Arsalan
Join Date: Jul 2014
Posts: 74
Rep Power: 11 |
Hi Ehsan,
Did you find any solution for decreasing initial residual of p_rgh ? Thanks. |
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February 20, 2016, 08:52 |
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#6 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
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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Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. |
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February 20, 2016, 12:44 |
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#7 |
Member
Arsalan
Join Date: Jul 2014
Posts: 74
Rep Power: 11 |
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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