| McCharles |
July 22, 2016 08:09 |
Boundary Condtions at OUTLET
Dear Foamers,
I am confused with the BC type pressureInletOutletVelocity for the velocity. My case has a strong recirculation at the Outlet. I know the mass flow at the Inlet and the static pressure at the Outlet.
Please have a look at my U and p BC :
for p
Code:
dimensions [1 -1 -2 0 0 0 0];
internalField uniform 299520;
boundaryField
{
PLENUM
{
type zeroGradient;
INLET
{
type zeroGradient;
}
OUTLET
{
type fixedValue;
value uniform 237150;
}
}
// ************************************************************************* //
for U
Code:
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0 0 0);
boundaryField
{
PLENUM
{
type fixedValue;
value uniform (0 0 0);
}
INLET
{
type flowRateInletVelocity;
massFlowRate constant 0.002985;
rhoInlet 3.084;
value uniform (0 0 0);
}
OUTLET
{
type pressureInletOutletVelocity;
value uniform (0 0 0);
}
// ************************************************************************* //
I want to make sure that my case is well defined for recirculation, so that pressure and velocity are defined / get calculated for backflows. Would it be better to use other BCs like inletOutlet for U and outletInlet for p?
Thank you so much,
Charles |
