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-   -   Mass conservation for eulerian simulation. (http://www.cfd-online.com/Forums/fluent/46738-mass-conservation-eulerian-simulation.html)

Lohen December 5, 2007 11:28

Mass conservation for eulerian simulation.
 
Hello everyone,

I've been doing for a while, gas-liquid Eulerian simulation with Fluent (bubble column or stirred tank). It is always impossible to conserve the volume fraction of water -primary phase, whatever the time step I use. Even with lowering the under relaxation factor velocity and/or volume fraction, water keeps on disappearing. My outlet condition is pressure outlet. If anyone has any clues about how to make a proper Eulerian multiphase simulation where the total mass is conserved, it would be great.

Cheers.

Emmery December 12, 2007 11:42

Re: Mass conservation for eulerian simulation.
 
Hi, have you tried with the mixture model ?


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