CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   FLUENT (https://www.cfd-online.com/Forums/fluent/)
-   -   Operating Pressure and Outlet Pressure (https://www.cfd-online.com/Forums/fluent/157855-operating-pressure-outlet-pressure.html)

gustavosimiema August 10, 2015 05:49

Operating Pressure and Outlet Pressure
 
Hi,

If I would like to work with 1 Pa pressure. So I Need to set Operating Pressure as 1 Pa and pressure outlet 0 Pa?
It will Change if the pressure outlet of the Domain changes?
For example, how would it be in the following 2 cases?

1) pressure outlet of the Domain = 1Pa

2) pressure outlet of the Domain = 101325 Pa


thanks

LuckyTran August 10, 2015 08:23

The default operating pressure is 101325 Pa. Pressures are specified in gage pressures so if you set the operating pressure as 1 Pa and:

1) pressure outlet = 1 Pa
the outlet would be at an absolute pressure of 1 + 1 = 2 Pa
2) pressure outlet = 101325 Pa
the outlet would be at an absolute pressure of 1 + 101325 = 101326 Pa

gustavosimiema August 10, 2015 10:36

Thank you for your answer.

So based on what you have said, if I set the Operating Pressure as 1Pa, and outlet pressure as 0Pa, then the absolute Presurre in the Outlet will be --> 1 + 0 = 1Pa, correct?
So I set right because I would like to work with low pressure, correct?

LuckyTran August 10, 2015 12:05

Yup. :)

Good luck.


All times are GMT -4. The time now is 16:18.