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David Liu October 19, 2004 01:20

phase changing simulation
Hello All i am working for vapor condensing in a duct ,and i want to solve this problem using VOF method. But i don't know if VOF can be used to solve this promlem. i hope someboby can tell me some information about this, and give some advice. thanks a lot.

David Liu

Oscar Link October 19, 2004 03:47

Re: phase changing simulation
VOF can be used. Condensation have to be described with an additional law at each volume. Take a look at the work of Prof. Philip Liu:

Hrvoje Jasak October 19, 2004 04:50

Re: phase changing simulation
This should be quite easy - all you need are appropriate source/sink terms in the volume fraction equation. Be careful how you discretise the terms to avoid the volume fraction solution to go out of bounds (0 <= gamma <= 1).

Good luck,


David Liu October 25, 2004 01:43

Re: phase changing simulation
Hrvoje Jasak , thank your answer, can you tell how can i set the density and spectic heat capacity in NS equation and in the volume fraction equation.Can you give me some information in detail, thank you.

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