[krapic]

Hello everyone, I need your help on a small problem.

I'm trying to simulate an air jet (in preparation for a flame combustion simulation) with a compressible solver. Unfortunately, I'm getting some illogical results - even though the pressure and temperature fields are reasonable throught the domain, the density doesn't change a bit. I checked the range of density values and it's [1,1]. Even though the density change shouldn't be very large, perhaps a percent or so, it seems completely wrong that it doesn't change at all. As far as I understand, if the pressure and temperature change, the density should change as well.

Since I'm using the predefined solver without any modifications, I can only assume the problem is in my boundary conditions. I am attaching my case with all the files in hope one of you might be able to identify the mistake and help me.

Pressure field

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Temperature field

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Thank you very much in advance.

[krapic]

SOLVED!

RhoMax in fvsolution was set to 1.0. The density of air in normal conditions is around 1.2 kg/m3.