Abstract

In the present study, a computational fluid dynamics method has been applied to investigate the effects of initial degree of supersaturation at reservoir condition on under-expanded sonic jet structures, such as Mach disk location and diameter, barrel shock wave and jet boundary. The axisymmetric nozzle geometry investigated was a contoured converging nozzle with straight part. As a result, it was found that the characteristics of flow with occurrence of non-equilibrium condensation in the jet were different from those without condensation.

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