计算到后面，出口OUT会有严重回流，请问大神们，知道怎么回事吗
U_boundaryField
{
bm
{
type noSlip;
}
out
{
type outletPhaseMeanVelocity;
Umean 0.03;
alpha alpha.steel;
value uniform (0 0 -0.03);
}
nb
{
type noSlip;
}
sm
{
type pressureInletOutletVelocity;
value uniform (0 0 0);
}
in
{
type fixedValue;
value uniform (0 0 -1.629);
}
P_rgh_boundaryField
{
bm
{
type fixedFluxPressure;
value uniform 0;
}
out
{
type zeroGradient;
}
nb
{
type fixedFluxPressure;
value uniform 0;
}
sm
{
type totalPressure;
p0 uniform 0;
U U;
phi phi;
rho rho;
psi none;
gamma 1;
value uniform 0;
}
in
{
type zeroGradient;
}
}
// ************************************************************************* //
