叶片前缘微小圆柱诱导涡对低压轴流风机气动性能的影响分析  

Influences of Vortex Caused by the Micro-cylinder in the Blade Leading Edge on the Aerodynamic Performance of Low-pressure Axial Fan

作　　者：陈晓飞[1] 黄典贵[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《热能动力工程》2016年第12期31-37,共7页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(51536006,51576133);上海理工大学流动控制与仿真重点实验室基金资助项目(D15013);上海市动力工程多相流动与传热重点实验室开放基金资助项目(13DZ2260900)

摘　　要：为了改善轴流风机的性能,提出了一种在轴流风机叶片前缘设置微小圆柱的流动控制方法,并使用CFD软件对采用此流动控制方法的轴流风机进行了数值计算。结果表明:叶片前缘前设置微小圆柱可在一定的工况范围内提高轴流风机的性能;通过对比叶片前缘有、无设置微小圆柱的轴流风机流场和叶片表面的边界涡通量分布发现,由于叶片前缘微小圆柱诱导涡的产生和发展改善了轴流风机内部流场,使得其性能得以提高。In order to improve the performance of axial fan,this paper presented a flow control method by installing a microcylinder in the leading edge of the axial fan blade,and investigated the corresponding performance by using CFD.The results show that the micro-cylinder can improve the fan performance within a certain range of operating conditions. By comparing the flow field and the distribution of the boundary vorticity flux between the axial fans with and without the micro-cylinder,the improvement of the axial fan performance was analyzed.

关 键 词：流动分离 边界涡量法 叶片前缘 微小圆柱 

分 类 号：V232.4[航空宇航科学与技术—航空宇航推进理论与工程]