|August 20, 2011, 16:56||
Join Date: Mar 2009
Location: POLAND, USA
Posts: 139Rep Power: 10
I am trying to solve following problem:
Fun = Fun (x,y)
Fun_xxxx = f(x,y),
where ()_xxxx, denotes 4th order derivative in respect to x.
To do this I changed the original problem to, set of two two-order equations:
H_xx = f(x,y)
Fun_xx = H.
To solve it in OpenFoam I am usning fvm::laplacian(1D,fun) operator with 1D being a tensor, definite as follows:
1D = (1 0 0;
0 0 0;
0 0 0),
what force laplacian operator to act only in x-direction.
In OF it looks like:
fvm::laplacian(1D, H) - f
fvm::laplacian(1D, Fun) - H
But unfortunately it gives wrong results ...
Does anyone of you know what is here wrong ?
thanks a lot
|diffusion coefficient, laplacian, non-uniform, operator, viscosity|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Problem with interFoam; Wave/wiggle alpha1 behavior||JonW||OpenFOAM||3||February 23, 2013 21:41|
|UDF compiling problem||Wouter||Fluent UDF and Scheme Programming||6||June 6, 2012 04:43|
|natural convection problem for a CHT problem||Se-Hee||CFX||2||June 10, 2007 06:29|
|Adiabatic and Rotating wall (Convection problem)||ParodDav||CFX||5||April 29, 2007 19:13|
|Is this problem well posed?||Thomas P. Abraham||Main CFD Forum||5||September 8, 1999 14:52|