Subsonic Poisselle flow
 

Hi there,

I am simulating subsonic channel flow (Poisselle flow) with rhoCentralfoam, but my solution is incorrect when I go ahead.

The error is that the flow reverses very soon and return back to the inlet (reverse flow).

I simulate half channel: bottom plate is wall, upper plate is symmetryPlane.

The BC's are:

Pressure:

inlet
{
type totalPressure;
p0 uniform 1.0487e5;
U U;
phi phi;
rho none;
psi none;
gamma 1.4;
value uniform 1.01e5;
}

outlet
{
// type fixedValue;
// value uniform 65000;
type zeroGradient;
}

top

{
type symmetryPlane;
}

wall

{
type zeroGradient;
}
}

Velocity:

inlet
{
type pressureInletVelocity;
phi phi;
value uniform (81.37 0 0);
}

outlet
{
type inletOutlet;
inletValue uniform (0 0 0);
value uniform (200.0 0 0);
}

wall
{

type slip;
}

top
{
type symmetryPlane;
}

Temperature
inlet
{
type fixedValue;
value uniform 300.0;
}

outlet
{
type inletOutlet;
inletValue uniform 300.0;
value uniform 300.0;
}

top
{
type symmetryPlane;
}

wall
{
type zeroGradient;
}
}

If any ones like, I will send him total files.

Thanks in advance,

Hi ehsan

Could you solve this problem?
If the answer is yes, could you please tell me how you could solve it?

thanks in advance
regards