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-   -   Pressure inlet problem (https://www.cfd-online.com/Forums/fluent/80686-pressure-inlet-problem.html)

Laci October 4, 2010 04:26

Pressure inlet problem
 
Hi guys,

I face with a problem when I use pressure inlet boundary conditions.
I simulate a reactor with compressible reacting flow. The calculation converge quite fast and the residuals are really low. :)
The only problem, that the pressure on the pressure inlet boundary, where I set the gauge pressure, is not the same I set at the beginning. :(
It seems Fluent calculates due to: p=pg+1/2*rho*g
Could you help me out, how to set really homogenous pressure on this boundary?
Thank you very much in advance.
Bests.

JoFFe October 4, 2010 17:27

I'm a fluent newbie but you maybe have 1 atm as operating pressure? The pressure shown at the inlet on a vector plot is the operting pressure + gaguge pressure at inlet. I think so atleast.

Laci October 5, 2010 04:51

I have figured out what was the problem. I just made a silly error. Thx :)


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