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Old   December 29, 2013, 07:32
Default simulating two different gases
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Hi,

I would like to know how to simulate two different gases in same domain in compressible flow solver. I use a modified form of rhoCentralFoam.

Domain is a cylindrical pipe with two internal diaphragms. I want to specify gases with different densities in the partitioned regions. I don't think it is a multi-phase flow type. The two fluids do not interact. It is just the transfer of loads that I am looking at.
The gases are modeled by same eqn of state. I just want to change the density.

As I post, I think about another option as to breakup the internalField into two so I can specify different initial densities. I don't know if its possible in openfoam.

suggestions would be sincerely appreciated.
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Old   December 30, 2013, 07:36
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Bernhard Linseisen
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Hi Achyutan,

how about using "reactingFoam" and switching off the chemistry solution part?

Cheers,
Bernhard
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Old   December 31, 2013, 05:11
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Hi Bernhard,
Thank u for your response.
I don't have much exp using reactingFoam. Also, I am using godunov type schemes for shock capturing which i guess i cannot use in reactingFoam. Of course, i can modify it to my use.

Now, I want to know if i use splitmeshRegions utility can i specify two different gases ?
if yes, how to do it ?
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