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-   -   air problem (http://www.cfd-online.com/Forums/flow-3d/73100-air-problem.html)

fba February 26, 2010 10:17

air problem
 
Hello users,
I use these physics (air entraiment, bubble and phase change, density evaluation, drift flux) in flow3d to simulate the air effects within sea wave. The simulation crash with this error "dbug print from mrtcal - negative tn, rho, or rhoe"
Can you help me, please?
Thank you

MuxaB February 26, 2010 10:31

Quote:

Originally Posted by fba (Post 247632)
Hello users,
I use these physics (air entraiment, bubble and phase change, density evaluation, drift flux) in flow3d to simulate the air effects within sea wave. The simulation crash with this error "dbug print from mrtcal - negative tn, rho, or rhoe"
Can you help me, please?
Thank you

you probably do not need bubble and phase change model. there are no large bubbles (larger than cell size) in the wave and certainly no phase change. For the drift-flux mode, what bubble (particle) size do you define?

fba February 26, 2010 10:40

It was 0.0 (default value), but now I run a new simulation with 0.01

mf_emp October 2, 2012 04:39

fabio did you find what was the problem?
because its my problem too!!

sirpinkyo April 15, 2015 01:06

Help me please what's the problem? :(


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