风扇/增压级设计与非设计性能数值模拟  

Numerical simulation of fan/compressor design and off-design performance

作　　者：李晓娟[1] 桂幸民[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100083

出　　处：《推进技术》2005年第6期522-525,共4页Journal of Propulsion Technology

基　　金：国家自然基金资助项目(50136010)

摘　　要：为了研究双涵道风扇/增压级的设计与非设计状态性能,利用三维数值模拟软件对某型双涵道风扇/增压级80%设计转速、88%设计转速、96%设计转速、100%设计转速下的各种工作状态进行了数值模拟。重点分析了典型工况下风扇/增压级出口特性参数分布与非设计转速下内涵特性。同时通过和实验结果的比较表明,对风扇/增压级设计状态性能的模拟较非设计状态性能的模拟更为准确。A three dimensional numerical simulation software named NUMECA （Numerical Mechanics Application）was used to calculate different operating points at 80% ,88% ,96% and 100% design speed to study design and off - design performance of fan/compressor. The characteristic parameter distribution at outlet under typical operating condition and off- design performance of core duct were analyzed. Compared with the results obtained from experimental data, the numerical simulation of fan/compressor design performance at design operating point show better agreement with the experiment than off- design operating point.

关 键 词：涡轮风扇发动机 风扇/增压级^+ 非设计性能^+ 数值仿真 

分 类 号：V235.133[航空宇航科学与技术—航空宇航推进理论与工程]