[ehsan]

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,

[javad1404]

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