上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (1): 55-65.doi: 10.16183/j.cnki.jsjtu.2021.222

所属专题: 《上海交通大学学报》2023年“机械与动力工程”专题

• 机械与动力工程 • 上一篇    下一篇

翅片阵列对翼面的冲击换热影响数值模拟研究

张天伦, 王克辰, 张栩, 周文武()   

  1. 上海交通大学 机械与动力工程学院, 上海 200240
  • 收稿日期:2021-06-23 修回日期:2021-07-23 出版日期:2023-01-28 发布日期:2023-01-13
  • 通讯作者: 周文武 E-mail:zhouww@sjtu.edu.cn.
  • 作者简介:张天伦(1999-),本科生,主要研究涡轮叶片上的颗粒物沉积效应.
  • 基金资助:
    结冰与防除冰重点实验室开放课题资助项目(IADL20190403)

Numerical Simulation Study on Effect of Fin Array on Impingement Heat Transfer Performance of Airfoil Surface

ZHANG Tianlun, WANG Kechen, ZHANG Xu, ZHOU Wenwu()   

  1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2021-06-23 Revised:2021-07-23 Online:2023-01-28 Published:2023-01-13
  • Contact: ZHOU Wenwu E-mail:zhouww@sjtu.edu.cn.

摘要:

曲面冲击换热在飞机机翼前缘防除冰上有着广泛应用.为了进一步提高翼型前缘防除冰性能,采用数值模拟依次探索了不同翅片阵列在平板和曲面上的冲击换热特性.平板模型的翅片阵列包含8片、12片直翅片以及12片弯翅片3种结构;曲面模型包括8片短翅片和8片长翅片两种阵列结构.仿真结果表明:在平板和翼型曲面上添加翅片阵列可以显著提高模型在不同雷诺数下的射流冲击换热性能;与无翅片相比,翼面上的换热效果整体提升高达4%~10%,其中在驻点位置处的强化换热效果最为明显.深入分析发现,引入的翅片阵列一方面增大了强化换热面积,同时也改变了冲击射流流动结构,从而增强了射流冲击换热的效果.

关键词: 冲击射流, 翅片阵列, 强化换热, 机翼防除冰

Abstract:

Impinging jet is widely implemented at the leading edge of aircraft wings for anti-/de-icing purposes. To further improve the anti-icing performance, this paper utilized numerical simulation to explore the impingement heat transfer characteristics of different fin arrays on flat plate and concave surface sequentially. The fin array in the flat-plate model consisted of 8, 12 straight fins or 12 curved fins. The concave surface model consisted of 8 short or long fins. The results show that the addition of fin arrays on the flat plate and airfoil surface can significantly improve the jet impact heat transfer performance at different Reynolds numbers. Compared with non-fins, the comprehensive heat transfer effect on the airfoil surface is increased by 4%—10%, especially for the stagnation region. Further flow field analysis reveals that adding fin array not only increases the area of heat transfer, but also strengthens the turbulent kinetic energy of impingement jet flow, leading to an enhancement of heat transfer performance.

Key words: impinging jet, fin array, enhanced heat transfer, airfoil anti-icing

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