Exploring the intention of Using Aspirated Cascade to Replace Tandem Cascades

作     者：Shengfeng Zhao Jianfeng Luo Xingen Lu Junqiang Zhu 

作者机构：Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100190 Graduate School of Chinese Academy of Sciences Beijing 100190 China Shanghai Electric Power Generation Equipment Co. Ltd. Shanghai Turbine Plant Shanghai 200240 China 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2010年第19卷第5期

页      面：390-396页

核心收录：

学科分类：082902[工学-木材科学与技术] 082502[工学-航空宇航推进理论与工程] 08[工学] 0829[工学-林业工程] 0825[工学-航空宇航科学与技术] 

基　　金：funded by the International S&T Cooperation Program (No.2010DFB70620) of china 

主　　题：tandem cascades aspirated cascade flow control boundary layer separation 

摘      要：In the present paper,computational fluid dynamics(CFD) simulations were executed to exploring the intent of using aspirated cascade to replace tandem ***,the ONERA tandem cascades were investigated,and the performance of the cascades at the design point were listed,such as diffusion factor,total pressure loss coefficient,deviation angle *** replacing the ONERA tandem cascades,a new cascade was designed with the codes BLADEGEN developed by the *** quasi 3-D calculations were carried out using the collection of programs for cascade analysis and design,*** cascade was analyzed and designed by using this *** the cascade was simulated and analyzed by commercial CFD *** is found there is an obvious separation on the suction *** on the 3D CFD simulation results of the cascade without aspiration,an aspirated cascade was designed by introducing a slot on the suction *** performance of the aspirated cascade was investigated and compared with the tandem cascades,indicated that under the same inlet condition,the total pressure loss of the single row aspirated cascade was less than that of the tandem cascades,and the outlet static pressure is higher than that of the tandem ***,the different suction slot location,suction width and suction mass flow are studied for the aspirated cascade.