[hiep.nguyentrong]

Hi, i want to solve fluid flow in pipe with mach ~0.6.
i used density-based, ideal gas with sutherland law. pressure inlet and pressure outlet on fluent. Result seem good.
But when im try to use openFoam using rhoSimpleFoam, i get errors at first timestep. here is my boundary conditions.
Can u help me whats wrong with this?

u
inlet
{
type pressureInletVelocity;
value uniform (200 0 0);
}
outlet
{
type zeroGradient;
}

p
inlet
{
type totalPressure;
p0 uniform 60000;
}
outlet
{
type fixedValue;
value uniform 0;
}