Difference between p (pressure) and static pressure

PeterShi · March 19, 2019, 13:25

Dear Foamers,

I am running large-eddy simulations (LES). I am confused with "pressure" and "static pressure" in OpenFOAM, see the attached screenshot below. What is the difference between them?

I read the definition of static pressure in Wikipedia, and I think when people talk about pressure, they refer it to static pressure. Then they are the same? However, I observed values of p and static(p) in OpenFOAM, they are different.

Thank you for any input.

Best,
Peter

Siassei · March 19, 2019, 15:59

Hello,

can this link help you?
https://cpp.openfoam.org/v6/classFoa...e.html#details

PeterShi · March 19, 2019, 16:23

Quote:

Originally Posted by Siassei

Hello,

can this link help you?
https://cpp.openfoam.org/v6/classFoa...e.html#details

Thank you for the thread. But still, what is the difference between "p" and "static(p)" in my screenshot? They are two different variables with different values in OpenFOAM.

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March 19, 2019, 15:59		#2
Siassei Member Join Date: Jun 2011 Location: Germany Posts: 59 Rep Power: 15	Hello, can this link help you? https://cpp.openfoam.org/v6/classFoa...e.html#details