翼刀附面层控制二次流技术的研究现状及发展前景

The Development of the Fence Technique in Secondary Flow Control

翼刀技术是附面层控制技术的一种,主要是通过有效阻断端壁附面层或叶片吸力面附面层近端壁处低能流体的横向迁移或径向迁移以及反向翼刀涡的影响来控制二次流。国外对此项研究起步较早,重点集中在对汽轮机叶栅的实验研究上;而国内在近几年,才开始了对压气机叶栅中应用翼刀技术的实验和计算研究工作。

The fence technique is one of the boundary layer control technologies. It is mainly to control secondary flow by both effectively inhibiting end wall boundary layer or blade boundary layer cross flow and forming reversed fence vortex. Being carried out earlier in foreign countries, the research is concentrated on the experimental investigation in turbine cascade. Computational and experimental investigations are conducted on the compressor cascade recent years in China.