[Ryokou]

Hello everyone,I'm a new OpenFOAM,and after searched CFD Online forum and OpenFOAM WIKI for a long time but I also can't solve the problem.So I hope someone can give me some advices ,I will appreciate a lot!

Ok now I'm doing a simulation about supersonic(M=2) created from a tube.I have done mesh by Gmsh,and that is no problem when I use it to do low velocity water simulation.But when I change to compressible M=2 air condition the calculated result is totally wrong(with the time elapsed there is almost no velocity and pressure change), I thought problem come out from the boundary conditions, but I already tried over 100 times that is also incorrect.

I set the p dictionary like this
dimensions [1 -1 -2 0 0 0 0];

internalField uniform 19600;

boundaryField
{
inlet
{
type zeroGradient;
}
outlet
{
type waveTransmissive;
field p;
psi thermosi;
gamma 1.4;
fieldInf 19600;
lInf 19600;
value 19600;
}
wall
{
type zeroGradient;
}
}

And the u dictionary like this
dimensions [0 1 -1 0 0 0 0];

internalField uniform (0 0 0);

boundaryField
{
inlet
{
type supersonicFreestream;
pInf 19600;
TInf 300;
UInf (600 0 0);
gamma 1.4;
value (600 0 0);
}

outlet
{
type zeroGradient;
}
wall
{
type noSlip;
}
}

The controlDic like this
application sonicFoam;

startFrom latestTime;

startTime 0;

stopAt endTime;

endTime 1e-6;

deltaT 1e-7;

writeControl timeStep;

writeInterval 1;

purgeWrite 0;

writeFormat ascii;

writePrecision 6; //was 6

writeCompression off;

timeFormat general;

timePrecision 6;

runTimeModifiable true;

I hope somebody tell me where is wrong, thank you very very much!!