单级压气机性能衰退定量研究.pdf

25 7 Vol. 25 No. 7 2010 7 Journal of Aerospace Power Jul. 2010 : 2010 1 2 3 1 1 李本威, 李 冬, 李姜华 , 王永华 , 杨欣毅 ( 1. , 264001; 2. , 264001; 3. , 266061) : . , , . , . , . . : ; ; ; ; : V231 3 : A Quantitative research on performance degradation of singlestage compressor 1 2 3 1 1 LI Benwei , LI ong , LI Jianghua , WANG Yonghua , YANG Xinyi ( 1. epartment of Aerocraft Engineering, Naval Aeronautical and Astronautical University, Yantai 264001, China; 2. Graduate Student Brigade, Naval Aeronautical and Astronautical University, Yantai 264001, China; 3. T echnology College of China and Germany, Qingdao T echnolgy University, Qingdao 266061, China) Abstract: T he change of the blade shape will result in the performance degradation of compressor. Traditionally, the calculation of the compressor performance degradation is ac complished by assuming that the blade surface varies evenly, or the loss coefficient is intro duced into the model, which often produces error. T he paper simulated the change of the blade shape caused by fouling using the method of adding random size in thefouling position. Meanwhile, the effect of the ingredients of the blade foul and tip clearance increase on the compressor performancewas analyzed. The quantitative performance degradation at different work conditions, and the change of the air float field and the total temperature around