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Old   August 16, 2011, 16:32
Default bubble dynamics
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navid
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Hello everyone,

I would be very happy if anyone can help me with this question. I would like to simulate a single bubble behavior in water under ultrasonic sound wave. This behavior consists of growth and collapse of bubble. Does anybody know cfx has this capability? anybody had similar experience with cfx?

I am not sure whether to use cfx or Fluent for this simulation? Does anybody know which one would be more powerful?

Thank you,

navid
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Old   August 16, 2011, 18:40
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Glenn Horrocks
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I suspect both CFX and Fluent can do it. I have done similar modelling and used fluent for it but I suspect either could do it. In my experience micro bubble collapse and expansion is a very tricky thing to model as you can get negative absolute pressures - and the problem is this is physically correct and I do not know of any CFD code which can handle negative absolute pressures.
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Old   August 17, 2011, 11:00
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Thanks for your reply. Do you know if I want to write some code in cfx, which language I should use? C or Fortran? because I think the problem discussed above cannot be modeled only by the use of software itself and I need to do some modifications in the software.
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Old   August 17, 2011, 18:44
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There should be no need for C or fortran. You should be able to set this up using the normal CEL and CCL.
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