Control of Transonic Flow Fields Using Local Occurrence of Non-Equilibrium Condensation

查看全文 作　　者：Junji [1]Nagao;Shigeru [1]Matsuo;Tokitada [1]Hashimoto;Toshiaki [2]Setoguchi;Heuy Dong [3]Kim

机构地区：[1]Department of Advanced Technology Fusion, Saga University;[2]Institute of Ocean Energy, Saga University;[3]School of Mechanical Engineering, Andong National University

出　　处：《Journal of Thermal Science》索引2013年第22卷第4期,共6页

摘　　要：Control of supersonic flow fields with shock wave is important for some industrial fields. There are many studies for control of the supersonic flow fields using active or passive control. When non-equilibrium condensation occurs in a supersonic flow field, the flow is affected by latent heat released. Many studies for the condensation have been conducted and the characteristics have been almost clarified. Further, it was found that non-equilibrium condensation can control the flow field. In these studies, the condensation occurs across the passage of the flow field and it causes the total pressure loss in the flow field. However, local occurrence of non-equilibrium condensation in the flow field may change the characteristics of total pressure loss compared with that by the condensation across the passage of the nozzle and there are few for researches of locally occurred non-equilibrium condensation in supersonic flow field. The purpose in the present study is to clarify the effect of local occurrence of non-equilibrium condensation on the transonic flow field in a nozzle with a circular bump. As a result, local occurrence of non-equilibrium condensation reduced the shock strength and total pressure loss in the transonic flow field by flowing the moist air from trailing edge of the circular bump to the mainstream. 关键词：跨声速流场水汽凝结被动控制非平衡超音速流场总压损失跨音速流场工业领域

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Control of Transonic Flow Fields Using Local Occurrence of Non-Equilibrium Condensation

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