supersonic wedge in fluent and openfoam
 

Hi foamers.
I want simulation supersonic flow over a body and for Comparison between fluent and openfoam, run flow over wedge with this condition:
Mach=3,angle=15
boundary condition for fluent:
(inlet,top,outlet=pressure far-field , bottom=symmetry, wedge=wall )
boundary condition for openfoam:
(p and U for inlet,top=fixedvalue)(p and U for outlet=zerogradient) (bottom=symmetry)(wedge=wall)
and use another boundary condition for outlet, for example: inletOutlet for U, waveTransmissive for P,.....
and draw pressure distribution over the wedge. there are very difference between fluent and openfoam results.
Which is reliable?