高负荷弯曲扩压叶栅中旋涡流动的研究  

PERFORMANCE OF CURVED COMPRESSOR CASCADES WITH LARGE CAMBER ANGLES AT DIFFERENT INCIDENCES

作　　者：陈绍文[1] 陈浮[1] 郭爽[1] 王仲奇[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《工程热物理学报》2007年第z1期117-120,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.50236020);哈尔滨工业大学优秀青年教师培养计划(No.HITQNJS.2006-046)资助

摘　　要：在不同冲角下,采用五孔探针对三种大弯角压气机叶栅流场进行了详细测量,并利用数值模拟研究了流动分离和旋涡结构对弯叶栅气动性能影响。结果表明,叶栅流道内旋涡由多涡结构向单一涡结构转变的趋势明显,叶片正弯曲加强了近吸力面涡系径向掺混作用;高负荷压气机叶栅中采用正弯叶片,必须抑制中部流动恶化。The flow filed of compressor cascades with three large camber angles at different incidences is measured by five-hole probe in details,and the influence of flow separation and vortex structure on the compressor bowed cascade aerodynamic performances was numerically studied.The results show the transit of the multi-vortex structure to single-vortex structure in compressor cascades flow passage is evidence,and the radial interaction of vortex near suction section is increased by using bowed blade. When positive bowed blade is used in high-loading compressor cascades,the deterioration of flow at endwall must be restrained.

关 键 词：流动分离 旋涡结构 正弯叶片 冲角 

分 类 号：TK474.7[动力工程及工程热物理—动力机械及工程]