CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   OpenFOAM Running, Solving & CFD (https://www.cfd-online.com/Forums/openfoam-solving/)
-   -   fixedFluxPressure (https://www.cfd-online.com/Forums/openfoam-solving/203289-fixedfluxpressure.html)

sinhavivekananda318 June 23, 2018 01:02

fixedFluxPressure
 
Hey foamers,
I am using interFoam for solving my case. Now my inlet velocity is 0.0833 m/s..so if i want to use fixedFluxPressure at the inlet then I have a doubt.
in interFoam the value of p_rgh would be uniform 0 or have to calculate the dynamic pressure by pho*U^2/2...and then put the value instead of uniform 0?
so my doubt is whether the bc would be:

type fixedFluxPressure;
value uniform 0;

or

type fixedFluxPressure
value uniform pho*U^/2;

Taataa June 23, 2018 10:56

It doesn't need the value line! Take a look at the description here.

er_ijaz September 11, 2018 07:51

p_rgh is not dynamic pressure
 
Hi
p_rgh is not dynamic pressure, instead it p-(density*gravity(-9.81)*height of the boundary.


All times are GMT -4. The time now is 04:52.