二次流对燃气轮机叶栅端壁上固体颗粒沉积影响的实验研究  

EXPERIMENTAL STUDY ON THE EFFECT OF SECONDARY FLOW ON THE SOLID PARTICLE DEPOSITION ON END WALL OF GAS TURBINE CASCADE

作　　者：常建忠[1] 俞茂铮[1] 沈祖达[1] 

机构地区：[1]西安交通大学,西安710049

出　　处：《热力发电》1998年第4期31-33,共3页Thermal Power Generation

摘　　要：在叶栅风洞气流中引入化学反应产生的TiO2 固体颗粒 ,并实验观察燃气轮机叶栅气固两相流的固体颗粒在叶栅端壁的沉积现象以及气固两相二次流的运动 ,揭示了叶栅二次流对固体颗粒在端壁上沉积的影响。The depositing character of particales on the cascade endwall and the gas-particle two-phase secondary flow are studied by putting the particles into the experimental tunnel.The particles are produced by using chemical method.The depositing character of particles and the structure of secondary flow fields in cascade are analyzed.The effect of secondary flow on the solid particle deposition on end wall of turbine cascade is revealed.

关 键 词：固体颗粒 沉积 两相流 二次流 叶栅 燃气轮机 

分 类 号：TK474.71[动力工程及工程热物理—动力机械及工程]