涡轮轮毂封严冷气对主流影响实验研究  

Experiments on the Effects of Wheelspace Coolant Injection on the Main Flow in Turbine Cascade

作　　者：唐晓娣[1] 刘火星[1] 邹正平[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《燃气涡轮试验与研究》2008年第4期16-21,共6页Gas Turbine Experiment and Research

摘　　要：本文针对不同冷气量和不同冷气喷入角组合工况下涡轮轮毂封严冷气对主流影响进行了实验研究,在一列低速涡轮平面叶栅上对不同工况下的叶栅出口流场、通道流场进行了测试。实验结果表明:在1.0%～1.8%冷气量下,1.0%冷气量沿45°喷入对主流影响最小,涡轮叶栅气动性能最优。This experimental research focused on the effect of wheelspace coolant injection on the main flow in various conditions, which combined different injection flow rates with injection angles. The outlet flow field and passage flow field in different conditions on the low speed turbine cascade column were tested. The results showed that, at the seal flow rate of 1.0%-1.8%, the coolant injection of 1.0% along 45° have the least effect on the main flow, and gain the best aerodynanfie performance.

关 键 词：封严冷气 气动性能 二次流损失 涡轮 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]