Numerical investigation on heat transfer mechanism of impingement jet with cross-flow

ZHANG Chuan-jie; SUN Ji-ning; TAN Ping

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Numerical investigation on heat transfer mechanism of impingement jet with cross-flow

更新时间：2026-07-07

- Numerical investigation on heat transfer mechanism of impingement jet with cross-flow
- Vol. 26, Issue 1, (2011)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院航空发动机气动热力科技重点实验室,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Chuan-jie, SUN Ji-ning, TAN Ping. Numerical investigation on heat transfer mechanism of impingement jet with cross-flow[J]. 2011, 26(1).
DOI：

ZHANG Chuan-jie, SUN Ji-ning, TAN Ping. Numerical investigation on heat transfer mechanism of impingement jet with cross-flow[J]. 2011, 26(1). DOI：

摘要

采用数值模拟的方法对冲击腔上游冲击产生的横流对下游冲击射流的影响进行了研究.结果表明

①随横流增大

射流冲击靶面平均努塞尔数呈现复杂的变化规律.②横流对冲击靶面平均努塞尔数的影响主要体现在两个方面:随横流雷诺数增大

冲击下游的拉伸涡对强度呈现先增大后减小的趋势

对换热的影响也是先增大后减小;横流使冲击射流偏移

导致高换热区域后移.③射流和横流对于换热强度的影响随着横流增大不断变化

造成冲击靶面复杂的换热规律.

Abstract

Numeration analysis was made to simulate the influence induced by upstream jet on downstream jets in impingement chamber.The results shows that

(1) As the cross-flow increases

the heat transfer efficiency on the impinged surface changes in a very complicated way.(2) Cross-flow influences the heat transfer of the impinged surface mainly in two aspects:as the cross-flow Reynolds number increases

the strength of stretched vortex pair downstream of the jet firstly increases and then decreases

resulting in the same influence on the heat transfer of the target surface;the deviation of the impinging jet induced by cross-flow makes the high heat transfer zone move backward. (3) As cross-flow increases

the heat transfer efficiency induced by impingement and cross-flow changes

making the heat transfer on the target surface more complicated.

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Related Author

YUE Wei

LEI Zhi-jun

SU Shang-mei

ZHU Jun-qiang

ZHANG Chuan-jie

SUN Ji-ning

LI Hao

MAO Hong-xia

Related Institution

Key Laboratory of Light-duty Gas-turbine, Institute of Engineering Thermophysics, Chinese Academy of Sciences

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National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics,School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

Beijing Institute of Environmental Features, China Aerospace Science and Industry Corporation

School of Energy and Mechanical Engineering, North China Electric Power University

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