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trajectory of bubbles in VOF/LSM

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Old   October 10, 2008, 16:45
Default trajectory of bubbles in VOF/LSM
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Anybody has good idea of tracking multiple bubbles in VOF or level set method? It's easy to calculate the center of mass for one bubble. But for multipple bubbles, how to distinguish them? Any comments?
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Old   October 11, 2008, 02:19
Default Re: trajectory of bubbles in VOF/LSM
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for this you need a region tracking algorithm,

an expensive way is to solve one poisson equation per region as disscused in this paper (like front tracking method):

but a very cheap and rubost method (particularly suited for structured grid) is to use fast marching method disscused in appendix of this paper:

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Old   November 10, 2008, 13:31
Default Re: trajectory of bubbles in VOF/LSM
merrouche djemai
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Dear Sir, I'm a graduate student and I'm also interessted to track more than one bubble using VOF method. I ask if you have make a progress in that field to help or to give me some references.

Many Thanks
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