Can openfoam solve problems in cylindrical and spherical coordinate systems?
 

Hi,

Can anyone tell me whether the OpenFoam grad, div and Laplacian operators are hardcoded to the Cartesian coordinate system (ie. grad(f)=?[df/dx df/dy df/dz])? Or are these operators flexible enough to also account for cylindrical and sperical coordinate systems?

I am interested in solving an axisymmetric dambreak problem and hence solving the problem within a cylindrical coordinate system would be the most elegant.

Best regards,
George

Hi George
As I know they are for Cartesian coordinate. But I think you can solve your problem in Cartesian coordinate easily.
Best regards

Ata

What you need to do is create a cylindrical or spherical wedge geometry in 3-D and use wedge boundary conditions.

Enjoy,

Hrv

Thanks. I will simulate a wedge then.

Cheers,
George

hello Dr. Jasak,

For the spherical wedge geometry, it is still with small angle (< 5 degree)? I am not sure what kind of spherical wedge geometry should be generated if I would like to solve the spherical geometry problems. Thank you so much.

OFFO

Dear openfoam....,

You should draw a slice of your geometry like the figures inside the attached website.

http://www.google.de/imgres?imgurl=h...ed=0CDkQ9QEwBA

I hope I understand your question exactly.

I got it, thanks!