热科学学报（英文版）2007，Vol.16Issue(2)：134-139,6.
Effect of Non-Equilibrium Condensation of Moist Air on Unsteady Behaviour of Shock Waves around a Circular Arc Blade
Effect of Non-Equilibrium Condensation of Moist Air on Unsteady Behaviour of Shock Waves around a Circular Arc Blade
Shigeru MATSUO 1Kenbu TERAMOTO 1Ashraful ALAM 2Toshiaki SETOGUCHI 1Heuy Dong KIM 3Shen YU4
作者信息
- 1. Department of Mechanical Engineering, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan
- 2. Department of Mechanical Engineering, Khulna University of Engineering & Technology, Khulna-9203, Bangladesh
- 3. School of Mechanical Engineering, Andong National University, 388, Songchun-dong, Andong 760749, Korea
- 4. Institute of Engineering Thermophysics, Chinese Academy of Sciences, P.O. Box 2706, Beijing 100080, China
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摘要
Abstract
The unsteady phenomena in the transonic flow around airfoils are observed in the flow field of fan, compressor blades and butterfly valves, and this often causes serious problems such as the aeroacoustic noise, the vibration. In the transonic or supersonic flow where vapour is contained in the main flow, the rapid expansion of the flow may give rise to a non-equilibrium condensation. However, the effect of non-equilibrium condensation on the transonic internal flows around the airfoil has not yet been clarified satisfactorily. In the present study, the effect of non-equilibrium condensation of moist air on the self-excited shock wave oscillation on a circular arc blade was investigated numerically. The results showed that in the case with non-equilibrium condensation, frequencies of the flow oscillation became smaller than those without the non-equilibrium condensation.关键词
compressible flow/transonic flow/shock wave oscillation/non-equilibrium condensation/simulationKey words
compressible flow/transonic flow/shock wave oscillation/non-equilibrium condensation/simulation分类
数理科学引用本文复制引用
Shigeru MATSUO,Kenbu TERAMOTO,Ashraful ALAM,Toshiaki SETOGUCHI,Heuy Dong KIM,Shen YU..Effect of Non-Equilibrium Condensation of Moist Air on Unsteady Behaviour of Shock Waves around a Circular Arc Blade[J].热科学学报（英文版）,2007,16(2):134-139,6.
