CFD Online Discussion Forums

CFD Online Discussion Forums (
-   OpenFOAM (
-   -   OpenFOAM- Low Mach Number - boundary (

tmu February 28, 2013 01:57

OpenFOAM- Low Mach Number - boundary
Hi Friends
I have a solver for simulation low mach flow. I have some question about boundary condition.
I want to simulate flame propagation in open tube.
which boundary condition must I use for pd?
I used zeroGradient for walls and inlet and fixValue(=1 atm) for outlet.
but this boundary condition calculate pd about 1 atm whereas pd must be little than pReff. (pd<<pReff) and i thinck this is wrong.
thanks alot

tmu March 1, 2013 03:54

no body

deji March 4, 2013 19:22

I think you ought to use buoyantPressure boundary condition for pd.

All times are GMT -4. The time now is 00:51.