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Gearb0x February 4, 2010 19:10

Boundary Conditions
 
Hello,

I'm new to fluent and I'm working on a case with a "U" pipe. I want to predict the pressure drop for a certain mass flow. I have problems with openfoam so I try to run the case on fluent to see where I did wrong with openfoam.

So I'd like to set the static pressure at the inlet & outlet
(I know, fluent has BC to match a mass flow but I'd like to compare results with OpenFoam wich doesn't have this type of boundary conditions so I do it this way)

In openfoam, there is no droplist for the boundary conditions and you can do whatever you want, it won't tell you if you do wrong things.
Here in fluent, I see that I can't set "static pressure" at the inlet but only total pressure and initial gauge pressure.
Why? Is it an error to only give static pressure @inlet & oulet? You absolutly have to set total pressure? Because in openfoam I set static pressure at the inlet & outlet and maybe my mistake is here so I'd like to know ...

I don't know if my question is very clear but thanks for your help!

otd February 6, 2010 12:22

You might get more responses if you post in the Fluent forum.

Gearb0x February 6, 2010 13:17

Oops thought I dit it ... Guess I screwed up somewhere!

Thanks for telling me!


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