大折转角弯扭静叶对跨声速压气机出口流场影响的实验研究  

EXPERIMENTAL INVESTIGATION ON EXIT FLOW FIELDS OF A TRANSONIC COMPRESSOR WITH HIGH-TURNING BOWED-TWISTED STATOR

作　　者：李绍斌[1] 陈浮[2] 颜培刚[2] 王仲奇[2] 周盛[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院航空发动机气动热力重点实验室,北京100191 [2]哈尔滨工业大学能源科学与工程学院,推进理论与技术研究所,黑龙江哈尔滨150001

出　　处：《工程热物理学报》2010年第10期1659-1662,共4页Journal of Engineering Thermophysics

摘　　要：以某小型涡扇发动机的进口跨声速风扇级为研究对象,采用单排大折转角弯扭静叶替代原型风扇级中的串列静叶,实验详细测量了风扇原型级和改型级(即弯扭叶片级)全工况持性下进出口的压力场和温度场分布。通过对比分析风扇级出口流场的总压分布,从流动机理上详细探讨了大折转角弯扭静叶对跨声速风扇级三维流场的改善和控制机理。结果表明:大折转角弯扭静叶比串列静叶具有更优的压力场控制能力,能有效控制高负荷跨声速压气机中的高能势流分布和端壁二次流损失,而且具有优良的变工况性能。Taking the transonic fan stage of a small turbofan engine as the research object, the original tandem stator was replaced by high-turning bowed-twisted stator. Pressure and temperature distributions at stage exit were detailed measured under full conditions. Both the controlling effect and flow mechanism of high-turning blade on flow fields were discussed by exit total pressure distributions. The comparative analysis shows that high-turning bowed-twisted stator has better performance in controlling pressure fields and potential flow than tandem stator under variable conditions in transonic fan stage.

关 键 词：大折转角 弯扭静叶 串列静叶 跨声速压气机 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]