[GGerber]

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

[ata]

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

[hjasak]

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

Enjoy,

Hrv

[GGerber]

Thanks. I will simulate a wedge then.

Cheers,
George

[openfoammaofnepo]

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

Originally Posted by hjasak

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

Enjoy,

Hrv

[Dosin]

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.

[openfoammaofnepo]

I got it, thanks!

Originally Posted by Dosin

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.