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Multiphase, Bubbly flows, Virtual Mass

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Old   July 17, 2005, 17:04
Default Multiphase, Bubbly flows, Virtual Mass
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KP
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Hi CFD champs,

I am working on modelling of bubbly flows. During the course of simulations lot of numerical instabilities leading to numerical divergence is observed when virtual mass is included in case set up. It would be interesting and helpful for me if some one can share their experience in the context of virtual mass. Just to give more insight to the situation I use FLUENT and Eulerian-Eulerian method for solving governing equations. Thanks for help in advance. Eagerly waiting for replies!

KP
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Old   July 18, 2005, 10:41
Default Re: Multiphase, Bubbly flows, Virtual Mass
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SC
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Dear KP

Maybe you could run a case without the virtual mass force, and then use the result from that run as your initial condition for the case with the virtual mass force.

SC
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Old   July 18, 2005, 10:46
Default Re: Multiphase, Bubbly flows, Virtual Mass
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KP
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SC, Thanks for the message. I already tried that and enabled virtual mass after fully developed flow conditions but still...its the same.

KP
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