CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   SWE by RBF (http://www.cfd-online.com/Forums/main/7448-swe-rbf.html)

 özkan eren April 21, 2004 11:18

SWE by RBF

Hi guys, I am new on this topic and have problems on setting the B.C. on the SWE ( shallow water eq ).When I run my code it goes well but after some step my water heights goes higher and higher ( it behaves still like a cosine function but with a high amplitude ).Thanks

 Mihail Galabov April 22, 2004 07:02

Re: SWE by RBF

Maybe you've forgotton to divide by 2 some central difference or a middle value :) .

 ao April 23, 2004 11:27

Re: SWE by RBF

It's better to let readers know what kind numerical scheme you use for solving SWE? And what do you mean 'higher and higher of h'? After a long long time, h will be still increasing to an unreasonalbe value?

 ozkan eren April 23, 2004 16:44

Re: SWE by RBF

collacation methods with r^3 rbf ( radial basis function ) .My problem is my h value is incresaing instead of having a nice sinusoidal shape( h value at the beginning )

 Haijun December 2, 2011 22:01

how to use RBFInterpolation

Hi
Now I am using OF-ext-1.6 do some work, I want to use RBFInterpolation. But I don't know how to used the RBF, and there are no such example about RBF. I will be appreciated if someone can give me a example about RBF.

 All times are GMT -4. The time now is 18:13.