Effect of Nonequilibrium Homogenous Condensation on Flow Fields in a Supersonic Nozzle |
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| Authors: | Toshiaki Setoguchi Shigeru Matsuo Shen Yu Hiroyuki Hirahara |
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| Affiliation: | (1) Department of Mechanical Engineering, Saga University, 1, Honjo-machi, Saga-shi, 840 Saga, Japan;(2) Institute of Engineering Thermophysics, Chinese Academy of Sciences, P.O. Box 2706, 100080 Beijing, China;(3) Department of Mechanical Engineering, Saitama University, 255, Shimo-okubo, Urawa-shi, 338 Saitama, Japan |
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| Abstract: | When condensation occurs in a supersonic flow field, the flow is affected by the latent heat released. In the present study, a condensing flow was produced by an expansion of moist air in a supersonic circular nozzle, and, by inserting a wedge-type shock generator placed in the supersonic part of the nozzle, the experimental investigations were carried out to clarify the effect of condensation on the normal shock wave and the boundary layer. As a result, the position of the shock wave relative to the condensation zone was discussed, together with the effect of condensation on pressure fiuctuations. Furthermore, a compressible viscous two-phase flow of moist air in a supersonic half nozzle was calculated to investigate the effect of condensation on boundary layer. |
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| Keywords: | supersonic flow condensation numerical simulation |
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