Research on deflection of nozzle spray direction

WANG Yan-zhong; NIU Wen-tao; TANG Wen; GUO Mei; GUO Xia; ZHAN Peng; ZHAO Zhi-shu; SHEN Rong

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Research on deflection of nozzle spray direction

更新时间：2026-07-07

- Research on deflection of nozzle spray direction
- Vol. 27, Issue 7, (2012)
- 作者机构：
  
  1. 北京航空航天大学机械工程及自动化学院,北京,100191
  2. 重庆大学机械传动国家重点实验室,重庆,400044
  3. 中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015
  4. 海军航空兵学院航空机械实验室,辽宁,锦州,121012
  5. 北方车辆研究所车辆传动重点实验室,北京,100072
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
移动端阅览
WANG Yan-zhong, NIU Wen-tao, TANG Wen, et al. Research on deflection of nozzle spray direction[J]. 2012, 27(7).
DOI：

WANG Yan-zhong, NIU Wen-tao, TANG Wen, et al. Research on deflection of nozzle spray direction[J]. 2012, 27(7). DOI：

摘要

针对航空发动机润滑系统喷油嘴喷射方向的偏离问题进行研究.首先分析了喷油嘴喷射方向发生偏离的机理

然后通过计算流体动力学(CFD)的方法与软件

建立了喷油嘴喷油过程的三维数值计算模型

对不同入口速度和喷油嘴长径比条件下的喷射方向进行了多组计算与比较

得到了影响喷射方向偏离的因素及其影响规律.研究发现:喷油嘴入口处的径向速度分量导致了喷射方向的偏离

径向速度分量与法向速度分量之比越大

喷油嘴长径比越大

喷射方向偏离程度越大;对已定的喷油嘴入口速度或长径比

能够找到与之匹配的长径比或入口速度

使得喷油方向无偏离.

Abstract

The jet flow deflection of aero-engine lubrication system was researched.The deflection mechanism was analyzed firstly.Then a three-dimensional numeric model of the nozzle was established based on the method and application of computational fluid dynamics(CFD).Then the spray direction with different inlet velocities and nozzle slenderness ratios was computed.Finally

the influential factor of the deflection and its rule were obtained through the comparison of the results.The study found that the radial velocity causeed the deflection of the spray direction.The greater ratios of radial velocity to normal velocity as well as length to diameter

the higher level the deflection.The results also show that the suitable match of inlet velocity and ratio of length to diameter result in no deflection.

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Related Author

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LI Jie

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Related Institution

School of Mechanical and Materials Engineering, North China University of Technology

Huiyang Aviation Propeller Company Limited, Aviation Industry Corporation of China, Limited

The Advanced Aviation Power Innovation Institute

Department of Precision Instruments, School of Mechanical Engineering, Tsinghua University

Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China

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