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How to specify outlet pressure

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Old   October 31, 2011, 05:49
Default How to specify outlet pressure
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I have one doubt in FLuent. ie
I want to specify outlet pressure as 5 bar in my problem using Fluent.
If i use operating pressure as 1bar(101325 Pa). Then what value i have to specify. Whether 5 bar or I have to take relative pressure value (5-1=4bar).
Any one plz help me to sortout this problem.

Thanks in Advance
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Old   November 7, 2011, 04:09
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All calculated pressures in your domain (including outlet pressures) are gauge pressures i.e relative to your operating pressure. So your outlet pressure BC will be 4bar , if your operating pressure is 1 bar.
Alternately you could specify your operating pressure as 5 bar and outlet BC as 0 bar.

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