Small Supersonic Nozzle

Paal

Hi All,

I am working on a physical test set-up and CFD analysis, which is featuring a supersonic nozzle of small dimension (Øthroat 0.5 mm, Øfinal 0.53 mm). And all of a sudden I realised that the dimensions of the nozzle is approaching the actual thickness of a shock wave (Approx 10^-2 mm according to my old lecture notes). Does anyone know of any references for this type of problem, or experience of small supersonic nozzles? I am at present not able to work out what will happen, having said that the analysis seems to indicate that it will work OK. I guess I will find out also when conducting the experiments.

Regards, Paal