收稿日期: 2002-04-03
修回日期: 2002-07-15
网络出版日期: 2003-03-10
Numerical Analysis of One Stage High Pressure Turbine Flow Field Considering the Effect of Cooling Air Mixing
Received date: 2002-04-03
Revised date: 2002-07-15
Online published: 2003-03-10
赵晓路 , 李维 , 罗建桥 . 带冷气掺混的涡轮级三元流场分析[J]. 中国科学院大学学报, 2003 , 20(2) : 155 -159 . DOI: 10.7523/j.issn.2095-6134.2003.2.004
Aeroengine is developing to perform higher thrust-weight ratio and lower fuel consumption by means of increasing turbine inlet temperature. The increase of the blade thermal load needs more cooling air to protect the blade's safety. The mass flow of cooling air has arrived to twentypercent of the turbine inlet flow at maximum. The influenceof the cooling air injection will not be neglected in the 3D flow field in high pressure turbine. Based on the parallel solution of multistage 3D Navier-stokes equation, this paper uses a source term model describing the cooling air injection, and the characteristic of the flow field and temperature field in one stage high pressure turbine considering the effect of cooling air mixing was evaluated.
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