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December 18, 2005, 15:17
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Hi,
The resulting algebraic
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#1 |
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Member
olivier Petit
Join Date: Mar 2009
Location: Göteborg, Sweden
Posts: 67
Rep Power: 17  |
Hi,
The resulting algebraic equation for a general variable (phi) linking its value at the center of a control volume P with the values of neighbouring cells (n) are: A_p *Phi_p=Sum_n(A_n * Phi_n ) + S_(phi) with : A_p=Sum_n(A_n)+ S_p My question is: How can I get the coefficient A_n ? thanks for your help. best regards olivier |
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December 18, 2005, 15:26
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Have a look at lduMatrix.H - t
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#2 |
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Senior Member
Hrvoje Jasak
Join Date: Mar 2009
Location: London, England
Posts: 1,905
Rep Power: 33 |
Have a look at lduMatrix.H - the member function you want is called diag()
Enjoy, Hrv
__________________
Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk |
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December 18, 2005, 18:52
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HI Jasak,
I have some confu
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#3 |
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Member
olivier Petit
Join Date: Mar 2009
Location: Göteborg, Sweden
Posts: 67
Rep Power: 17 |
HI Jasak,
I have some confusion: I think that Ap is calculated in O.FOAM as: Ap=diag()/mesh.V(); and you said that A_n=diag() but in the theory Ap=Sum_n(A_n)+ S_p; how come ? thanks for your help. olivier |
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