【摘要】 热痕现象深刻影响涡轮叶片的热负荷，关于该现象的研究成果将对提高涡轮前温度、优化发动机燃烧室与涡轮叶排周向相对位置等起到促进作用。本文采用无粘时间精确解对热痕现象在所设计１＋１对转涡轮中的作用做了初步研究。更多还原

【Abstract】 The hot streak exerts significant influence on the heat load of the turbine. So, results of investigation about the hot streak will promote the performance of the aircraft engine. A primary numerical study about the hot streak effects in a counter-rotating turbine is presented. Due to its convective nature, a three dimensional time-accurate solver is used to simulate the hot streak/blade row interactions. Many interesting and importan understandings are obtained.更多还原