全三维_多叶排内外涵风扇压气机叶型优化研究_陈云永.pdf

23 3 Vol.23 No.3 2008 3 Journal of Aerospace Power Mar. 2008 : 1000-8055(2008) 03-0516-06 1 1 1 1 2 2 陈云永 , 刘 波, 马聪慧 , 高丽敏 , 石建成 , 温 泉 ( 1. , 710072; 2. , 412002) : /, ./ , : 1.05%; ,. : ; / ; ; ; : V211 : A Three-dimension blade optimization of mult-i blade fan/ compressor 1 1 1 1 CHEN un-yong , LIU Bo , MA Cong-hui , GAO L-i min 2 2 SHI Jian-cheng , WEN Quan ( 1. National Defence Aerodynamics Laboratory of Airfoil and Cascade, Northwestern Polytechnical University, Xi. an 710072, China; 2. China Aviation Power Plant Research Institute, Zhuzhou 412002, China) Abstract: With the help of software Fine/ Design 3D and a computational fluid dynamics (CFD) method, theoptimization design of a three-dimensional blade was carried out for fan/ compressor. Then three-dimensional numerical simulation software named Fine/Turbo was used to calculate typical working conditions of both the new fan/ compressor and the initial one at design rotating speed. The flow field performance under design speed condition was obtained. Numerical results show that efficiency is increased by 1.05% at design point after optimization of fan blade, without changing the stage total pressure ratio. T he optimization obviously improves, especially in the fan stream, the flow structure and parameters of the fan/ compressor. s main flow. Key words: aerospace propulsion system;