Unsteady Numerical Simulation on the Effects of Hot Streak Phenomena on Turbine Stage

DONG Su-yan; LU Song-ling; ZHU Hui-ren

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Unsteady Numerical Simulation on the Effects of Hot Streak Phenomena on Turbine Stage

更新时间：2026-07-07

- Unsteady Numerical Simulation on the Effects of Hot Streak Phenomena on Turbine Stage
- Vol. 16, Issue 3, (2001)
- 作者机构：
  
  西北工业大学706教研室,陕西,西安,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2001
- 稿件说明：
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DONG Su-yan, LU Song-ling, ZHU Hui-ren. Unsteady Numerical Simulation on the Effects of Hot Streak Phenomena on Turbine Stage[J]. 2001, 16(3).
DOI：

DONG Su-yan, LU Song-ling, ZHU Hui-ren. Unsteady Numerical Simulation on the Effects of Hot Streak Phenomena on Turbine Stage[J]. 2001, 16(3). DOI：

摘要

通过求解二维N-S方程对涡轮级进口有温度畸变时的流场和温度场进行了非定常数值模拟。由于叶排间的相互运动

使叶片表面压力和叶栅通道内的流场呈周期性地变化;当涡轮进口有热斑时

热斑中的气流总温要高于周围气流温度

在通过涡轮级时

热斑中的高温气流会向转子压力面上迁移

导致转子压力面上产生热点。热斑的存在对涡轮级中的压力分布影响很小

但是严重影响温度场的分布。同时进口热斑相对导叶的位置对叶片表面温度的分布也有很大影响。

Abstract

The unsteady numerical simulation is completed by means of two dimensional

Navier Stokes analysis to predict unsteady flow and temperature fields with inlet temperature distortions in a turbine stage.Because of relative movement of blade rows

the pressure distributions on the blade and the flow field in the cascade vary periodically.When the distribution of inlet flow temperature becomes non uniform

the inlet hotter gas in the hot streak will migrate to the pressure surface of the rotor blade and causes the hot spot on it.The location of the hot streak has a significant effect on the surface temperature distribution.However the presence of hot streak has little effect on the pressure distribution on the blade surface.

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Related Author

LIU Gao-wen

LIU Song-ling

DONG Su yan

LIU Song ling

ZHU Hui ren

XUE Wei-peng

ZENG Jun

HUANG Kang-cai

Related Institution

College of Propulsion and Energy, Northwestern Polytechnical University

Northwest Polytechnic University

Turbine Technique Department, China Gas Turbine Establishment, Aviation Industry Corporation of China

School of Aerospace, Tsinghua University

Aeroengine Numerical Simulation Research Center, School of Jet Propulsion,Beijing University of Aeronautics and Astronautics

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