带冷气掺混的涡轮级三元流场分析

doi:10.7523/j.issn.2095-6134.2003.2.004

中国科学院大学学报 ›› 2003, Vol. 20 ›› Issue (2): 155-159.DOI: 10.7523/j.issn.2095-6134.2003.2.004

带冷气掺混的涡轮级三元流场分析

赵晓路¹, 李维¹, 罗建桥²

1. 中国科学院工程热物理所, 北京 100080;
2. 航空工业608所, 株洲 412002

收稿日期:2002-04-03 修回日期:2002-07-15 发布日期:2003-03-10
作者简介:赵晓路,E-mail:xlz@mail.etp.ac.cn

Numerical Analysis of One Stage High Pressure Turbine Flow Field Considering the Effect of Cooling Air Mixing

Zhao Xiaolu¹, Li Wei¹, Luo Jianqiao²

1. Institute of Engineering Thermophysics, Chinese Academy of Science, Beijing 100080, China;
2. 608 Institute of Avational Industry, Zhuzhou 412002, China

Received:2002-04-03 Revised:2002-07-15 Published:2003-03-10

摘要/Abstract

摘要：

航空发动机向大幅度提高推重比和降低油耗的方向发展.涡轮进口温度在不断的提高.随着叶片热负荷的加大,冷却用气量也不断加大,最多已占到涡轮进口流量的20%左右.冷却气的喷射对高压涡轮级的三元流场会产生不可忽略的影响.在多叶片排三元N-S方程并行解的基础上,采用冷却气射流源项模型,研究了某带冷气掺混的高压涡轮级的流场和温度场分布特点.

关键词: 高压涡轮级, 三元流场, 冷气掺混

Abstract:

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.

Key words: high pressure turbine stage, 3D flow structure, cooling air mixing

中图分类号:

V231.3

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.

Zhao Xiaolu, Li Wei, Luo Jianqiao. Numerical Analysis of One Stage High Pressure Turbine Flow Field Considering the Effect of Cooling Air Mixing[J]. , 2003, 20(2): 155-159.

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带冷气掺混的涡轮级三元流场分析

Numerical Analysis of One Stage High Pressure Turbine Flow Field Considering the Effect of Cooling Air Mixing

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