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mike.h
Posts: 20
Registered: ‎02-13-2013

Source Term in the Cavitation Model

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07-29-2013 09:22 AM

Hi

 

I was wondering how exactly the cavitation model in SimCFD2013 works. Given the Information in this link:

http://wikihelp.autodesk.com/Simulation_CFD/enu/2013/Help/0407-Learning407/0828-Theoreti828/0831-Gov...

The source term in the transport equation is a somewhat simplified Rayleigh expression, neglecting inertia and viscosity effects. Although i do not understand what the expression after the curly bracket is supposed to say:

50 f_g f_lg --> p < p_v

0.001 f_v --> p > p_v

could somebody explain?

Also there is a fixed radius r_b (average bubble radius), what is its value and how can i change it?

Has the mass-fraction of the dissolved non-condensable gas influence on the source term?

 

Thanks in advance

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Contributor
mike.h
Posts: 20
Registered: ‎02-13-2013

Re: Source Term in the Cavitation Model

08-12-2013 08:32 AM in reply to: mike.h

ideas?

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