Can openfoam solve problems in cylindrical and spherical coordinate systems?

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 October 26, 2010, 07:58 Can openfoam solve problems in cylindrical and spherical coordinate systems? #1 New Member   George Join Date: Oct 2010 Posts: 18 Rep Power: 8 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

 October 27, 2010, 02:33 #2 Senior Member     ata kamyabi Join Date: Aug 2009 Location: Kerman Posts: 323 Rep Power: 10 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

 October 27, 2010, 17:11 #3 Senior Member   Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,797 Rep Power: 23 What you need to do is create a cylindrical or spherical wedge geometry in 3-D and use wedge boundary conditions. Enjoy, Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

 October 27, 2010, 17:18 #4 New Member   George Join Date: Oct 2010 Posts: 18 Rep Power: 8 Thanks. I will simulate a wedge then. Cheers, George

February 3, 2015, 18:17
#5
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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

Quote:
 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

 February 5, 2015, 10:48 #6 New Member   Join Date: Jan 2015 Posts: 11 Rep Power: 4 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.

February 5, 2015, 11:37
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I got it, thanks!

Quote:
 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.

 Tags cylindrical coordinate

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