CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   absolute and total pressure (

novice May 21, 2008 05:31

absolute and total pressure
What is the difference in Fluent between absolute pressure and total pressure???

mAx May 21, 2008 07:05

Re: absolute and total pressure
absolute pressure = static_pressure + operating_pressure total_pressure = static_pressure + dynamic_pressure dynamic_pressure = 0.5*rho*U**2

red lemon May 26, 2008 18:48

Re: absolute and total pressure
absolute/gauge is just a reporting convention (usually relative to atmospheric pressure)

static/total is a key physical variation such that at rest static pressure = total pressure but as fluid momentum increases the two separate and the difference is the dynamic pressure.

All times are GMT -4. The time now is 17:48.