|
[Sponsors] |
November 20, 2008, 19:21 |
Hi All
I would like to solv
|
#1 |
Senior Member
Vishal Nandigana
Join Date: Mar 2009
Location: Champaign, Illinois, U.S.A
Posts: 208
Rep Power: 18 |
Hi All
I would like to solve coupled transport equations (not using relaxation technique). Can someone help me which tutorial I should go about looking to solve my problem. These are my equations ddt(C1) = - K1 * laplcian(C1) - K2 * laplacian (phi) ddt(C2) = - K1 * laplcian(C2) - K2 * laplacian (phi) K3 * laplacian (phi) = K4 where k1,k2,k3,k4 are some constant values.. Kindly help me out. I tried searching in the forum and could not get any information pertaining to this. I don't think I can use conjugate heat transfer solver for this. Vishal |
|
November 21, 2008, 01:22 |
Look at scalarTransportFoam in
|
#2 |
Member
Prashant Ojha
Join Date: Mar 2009
Posts: 38
Rep Power: 17 |
Look at scalarTransportFoam in the '$FOAM_SOLVERS/basic' folder
|
|
November 21, 2008, 02:41 |
What about solving your equati
|
#3 |
Member
Christian Winkler
Join Date: Mar 2009
Location: Mannheim, Germany
Posts: 63
Rep Power: 17 |
What about solving your equations in a segregated manner?
First solve: K3 * laplacian (phi) = K4 and then: ddt(C1) = - K1 * laplcian(C1) - K2 * laplacian (phi) ddt(C2) = - K1 * laplcian(C2) - K2 * laplacian (phi) or is there any coupling in C1 and C2? Best regards Christian |
|
November 21, 2008, 16:53 |
Hi Christian and Prashanth,
|
#4 |
Senior Member
Vishal Nandigana
Join Date: Mar 2009
Location: Champaign, Illinois, U.S.A
Posts: 208
Rep Power: 18 |
Hi Christian and Prashanth,
Thanks a lot for the reply. I just missed one term in my equation. The equations look like this, ddt(C1) = K1 * laplcian(C1) + K2 * laplacian (phi) ddt(C2) = K1 * laplcian(C2) + K2 * laplacian (phi) K3 * laplacian (phi) = K4 * f(C1) + K5 * f(C2) (Further this is a stiff equation) where k1,k2,k3,k4 and k5 are some constant values.. I want to solve them directly and not using relaxation procedure. Kindly offer some suggestions as to how to go about solving them. May I know which tutorial i have to follow. Thanking You Vishal |
|
November 22, 2008, 17:43 |
Thanks a lot for the reply. I
|
#5 |
Senior Member
Vishal Nandigana
Join Date: Mar 2009
Location: Champaign, Illinois, U.S.A
Posts: 208
Rep Power: 18 |
Thanks a lot for the reply. I just missed one term in my equation. The
equations look like this, ddt(C1) = K1 * laplcian(C1) + K2 * laplacian (phi) ddt(C2) = K1 * laplcian(C2) + K2 * laplacian (phi) K3 * laplacian (phi) = K4 * f(C1) + K5 * f(C2) (Further this is a stiff equation) where k1,k2,k3,k4 and k5 are some constant values.. f(C1) and f(C2) means the equation is a function of C1 and C2. I want to solve them directly and not using relaxation procedure. Kindly offer some suggestions as to how to go about solving them. May I know which tutorial i have to follow. Thanking You Vishal |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How to solver coupled transport equations | chris1980 | OpenFOAM Running, Solving & CFD | 8 | October 29, 2019 08:15 |
How to add transport equations | alimansouri | OpenFOAM Running, Solving & CFD | 6 | January 12, 2009 17:20 |
Solve Coupled Equations | nandiganavishal | OpenFOAM Running, Solving & CFD | 1 | November 12, 2008 23:47 |
Coupled equations solution | litonx | OpenFOAM Running, Solving & CFD | 7 | February 14, 2007 19:31 |
Coupled mass and heat transport | yves | OpenFOAM Running, Solving & CFD | 1 | May 5, 2006 06:33 |