Effect of inclined angle on discharge coefficient of the discrete holes in curved wall

ZHANG Chi; ZHAO Meng-meng; LIN Yu-zhen; LIU Gao-en

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Effect of inclined angle on discharge coefficient of the discrete holes in curved wall

更新时间：2026-07-07

- Effect of inclined angle on discharge coefficient of the discrete holes in curved wall
- Vol. 22, Issue 7, (2007)
- 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重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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ZHANG Chi, ZHAO Meng-meng, LIN Yu-zhen, et al. Effect of inclined angle on discharge coefficient of the discrete holes in curved wall[J]. 2007, 22(7).
DOI：

ZHANG Chi, ZHAO Meng-meng, LIN Yu-zhen, et al. Effect of inclined angle on discharge coefficient of the discrete holes in curved wall[J]. 2007, 22(7). DOI：

摘要

对弯曲壁上的多孔气膜冷却方式的流量系数进行了实验研究

目的是确定在一定曲率的弯曲壁上不同开孔倾角冷却孔的平均流量系数随压力参数的变化规律

并从流动损失方面进行深入分析.研究结果表明

对于几何参数一定的多孔冷却方式

影响其流量系数的气动因素用压力参数来表示是合理的

但对于不同的开孔倾角

压力参数对流量系数的影响效果有很大差别.

Abstract

An experimental investigation was conducted on the discharge coefficient of multi-holes cooling with different inclined angles in the curved wall for an aircraft engine combustor.The research purpose is to obtain the tendency of the average discharge coefficients with the pressure parameter

one of the most important influencing factors

and to analyze the flow dynamics.The research results indicate that as an aerodynamics factor the pressure parameter has significant impact on the discharge coefficient of the discrete holes for a given geometrical configuration

and for different inclined angles it has different effects.

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Related Author

ZHANG Wei

LI Guang-chao

PENG Da-wei

WANG Cheng-jun

XIANG Song

ZHANG Chi

LIN Yu-zhen

XU Quan-hong

Related Institution

Liaoning Key Laboratory of Digital Technology Simulation and Test Technique,School of Aero Dynamics and Energy Engineering,Shenyang Institute of Aeronautical Engineering

School of Power and Energy,Northwestern Polytechnical University

National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

The key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University

China Aerospace Science and Technology Corporation

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