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Density change in channel

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Old   July 12, 2014, 02:01
Default Density change in channel
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yoong
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Hi! i want to start my work on fuel cell modeling with matlab.

But when I consider flow in channel, i have a confusion about density issue.

Although velocity of hydrogen gas flow is slow, there exist considerable pressure

gradient because of hydrogen mass reduction through membrane.


Should i consider gas as compressible one with density change?

I don't know what to do because my origin major is not that related with CFD.

Now I have knowledge about only incompressible viscous flow.

Can i get some examples of code about CFD with density change or some advice?
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