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Forum: OpenFOAM Running, Solving & CFD September 16, 2008, 08:07
Replies: 33
Views: 10,426
Posted By suredross
hello, i am simulating the fl

hello,
i am simulating the flow and mixing effects in a rectangular channel(pure EOF). i introduce a scalar transport equation to see the mixing effects,thus
fvm::ddt(C) + fvm::div...
Forum: OpenFOAM Running, Solving & CFD April 30, 2008, 05:31
Replies: 33
Views: 10,426
Posted By suredross
Hi, in running my solver(modi

Hi,
in running my solver(modified icofoam),i am hit with this error message:

--> FOAM FATAL ERROR : incompatible dimensions for operation
[U[0 1 -2 0 0 0 0] ] - [U[0 -1 -1 0 0 0 0] ]#0 ...
Forum: OpenFOAM Running, Solving & CFD April 29, 2008, 07:10
Replies: 33
Views: 10,426
Posted By suredross
Hi Niels, i did as you said a

Hi Niels,
i did as you said and have now got my equations.however there is a new problem;i need to add the laplace equation to my solver because i need to solve for electric potential(fields) in...
Forum: OpenFOAM Running, Solving & CFD April 25, 2008, 07:25
Replies: 33
Views: 10,426
Posted By suredross
Hi Dragos, i have a new probl

Hi Dragos,
i have a new problem;how do i modify the navier stokes equation in the code to reflect dimensionless variables?the previuos issue has been resolved,thanks for your help.



davey
Forum: OpenFOAM Running, Solving & CFD April 18, 2008, 06:44
Replies: 33
Views: 10,426
Posted By suredross
Hi Dragos, as u saw,i modifie

Hi Dragos,
as u saw,i modified the conc into a vector knowing that i can imput two different values for my intlets.unfortunately,when i view it in paraFoam,it shows only one conc all through which...
Forum: OpenFOAM Running, Solving & CFD April 18, 2008, 05:33
Replies: 33
Views: 10,426
Posted By suredross
Hi dragos, here are my source

Hi dragos,
here are my source code and createfield files:
source code:
http://www.cfd-online.com/OpenFOAM_Discus/icons/attachment_icon.gif junctionFoam.C...
Forum: OpenFOAM Running, Solving & CFD April 17, 2008, 07:24
Replies: 33
Views: 10,426
Posted By suredross
hi Dragos i have tried what u

hi Dragos
i have tried what u said(exactly as u wrote it).it seems to run fine but when i view it with paraview i cannot see the two different concentrations?do i need to modify the equation again?...
Forum: OpenFOAM Running, Solving & CFD April 16, 2008, 08:02
Replies: 33
Views: 10,426
Posted By suredross
hi, i want to add a scalar tr

hi,
i want to add a scalar transport equation to the icoFoam solver.my eqn is :

fvm::ddt(C) == -fvc::grad (C,U)
is my equation correct and where do i implement it in my solver?

thanks...
Showing results 1 to 8 of 8

 
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