InterFoam visualization

msrinath80 · July 11, 2007, 13:14

Consider a 3D rectangular channel of still water and at time t = 0 sec, a 3D air bubble rises from the bottom. The simulation completed nicely with interFoam. How can I visualize the bubble rising in water in paraView? Is there any way to separate cells based on density as opposed to gamma? I would prefer to see a sharp distinction. How do you postprocess 3D interFoam cases?

hjasak · July 11, 2007, 13:21

How about drawing an iso-surface of gamma = 0.5?

Hrv

msrinath80 · July 11, 2007, 13:59

That did the trick. Thanks Hrv! I suspect it was the same way you created that animation of air being injected from a tube into a water tank with a free surface.

msrinath80 · July 11, 2007, 15:03

Hrv: I thought you might want to look at a sample movie (two large diameter bubbles breaking up in a 3D tank completely filled with water) visualized using gamma isosurface = 0.5. I used OpenFOAM 1.4 and Bernhard's excellent funkySetFields utility to initialize gamma. Here it is:

http://www.ualberta.ca/~madhavan/isosurface_movie.mpg

Once again, thanks for your help

July 11, 2007, 13:14	Consider a 3D rectangular chan	#1
msrinath80 Senior Member Srinath Madhavan (a.k.a pUl\|) Join Date: Mar 2009 Location: Edmonton, AB, Canada Posts: 703 Rep Power: 22	Consider a 3D rectangular channel of still water and at time t = 0 sec, a 3D air bubble rises from the bottom. The simulation completed nicely with interFoam. How can I visualize the bubble rising in water in paraView? Is there any way to separate cells based on density as opposed to gamma? I would prefer to see a sharp distinction. How do you postprocess 3D interFoam cases?

July 11, 2007, 13:21	How about drawing an iso-surfa	#2
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,908 Rep Power: 34	How about drawing an iso-surface of gamma = 0.5? Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

July 11, 2007, 13:59	That did the trick. Thanks Hrv	#3
msrinath80 Senior Member Srinath Madhavan (a.k.a pUl\|) Join Date: Mar 2009 Location: Edmonton, AB, Canada Posts: 703 Rep Power: 22	That did the trick. Thanks Hrv! I suspect it was the same way you created that animation of air being injected from a tube into a water tank with a free surface.

July 11, 2007, 15:03	Hrv: I thought you might want	#4
msrinath80 Senior Member Srinath Madhavan (a.k.a pUl\|) Join Date: Mar 2009 Location: Edmonton, AB, Canada Posts: 703 Rep Power: 22	Hrv: I thought you might want to look at a sample movie (two large diameter bubbles breaking up in a 3D tank completely filled with water) visualized using gamma isosurface = 0.5. I used OpenFOAM 1.4 and Bernhard's excellent funkySetFields utility to initialize gamma. Here it is: http://www.ualberta.ca/~madhavan/isosurface_movie.mpg Once again, thanks for your help

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