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March 11, 2013, 04:46 |
compute U in p.Eqn in interfoam
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#1 |
Member
Join Date: Mar 2013
Posts: 98
Rep Power: 13 |
Hi to all,
i am a bit confused in the computed of U in the pEqn.H of interFoam why is computed as follow? U += rAU*fvc::reconstruct((phi - phiU)/rAUf) I compare it with the PISO algorithm in wich U is computed as: U -= rUA*fvc::grad(p); thanks to all |
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March 18, 2013, 08:53 |
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#2 |
Senior Member
Fumiya Nozaki
Join Date: Jun 2010
Location: Yokohama, Japan
Posts: 266
Blog Entries: 1
Rep Power: 18 |
This topic is discussed in several threads:
The following documents cover most of the points about interFoam including this topic:
Regarding the "reconstruct" function, you might want to see the following thread: Best regards, Fumiya Last edited by fumiya; March 19, 2013 at 21:58. |
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March 18, 2013, 09:23 |
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#3 |
Member
Join Date: Mar 2013
Posts: 98
Rep Power: 13 |
Thank you very much for your help
I have another question: in the first document that you send me the compression term is discretized as show in 114 but in i look in the code and the discretization is different. In the code, in fact, is used a quadratic compression scheme as follow: min(max(4*min(phiP*(1 - phiP), phiN*(1 - phiN)), 0), 1) the two scheme are similar?what is better? Thank you very much for your willingnes |
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