Difference between p (pressure) and static pressure

PeterShi · March 19, 2019, 14:25

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, 16:59

Hello,

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

PeterShi · March 19, 2019, 17:23

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.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pressure Inlet VS velocity Inlet difference	Mohsin	FLUENT	9	January 4, 2021 11:34
What is difference between static pressure and gauge pressure?	aja1345	FLUENT	1	July 20, 2018 21:05
Pressure Outlet Guage pressure	Mohsin	FLUENT	36	April 29, 2016 18:16
Maintaining Static Pressure at Fluid Flow Inlet	cdevalve	FLUENT	3	January 14, 2012 01:11
difference between total pressure and static press	kiran	Main CFD Forum	5	June 8, 2005 10:23

March 19, 2019, 16:59		#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