推进技术 ›› 1997, Vol. 18 ›› Issue (2): 50-55.

• • 上一篇    下一篇

叉排型扰流柱排内部流场的实验研究

苏红桢,刘松龄,许都纯   

  1. 西北工业大学航空动力与热力工程系!西安;710072;西北工业大学航空动力与热力工程系!西安;710072;西北工业大学航空动力与热力工程系!西安;710072
  • 发布日期:2021-08-15
  • 基金资助:
    英国Rolls-Royce公司资助

AN EXPERIMENTAL INVESTIGATION ON FLOW FIELD IN STAGGERED PIN FIN ARRAY

  1. Dept. of Aeroengine, Northwestern Polytechnical Univ., Xi’an, 710072;Dept. of Aeroengine, Northwestern Polytechnical Univ., Xi’an, 710072;Dept. of Aeroengine, Northwestern Polytechnical Univ., Xi’an, 710072
  • Published:2021-08-15

摘要: 在特别建造的小型扰流柱排风洞上,测量了6个不同雷诺数下叉排型短扰流柱排内部的流场分布,发现不同雷诺数下流场分布非常相似,在奇数和偶数测量截面上,速度分布规律不同,在奇数截面上可以观察到通道涡,在偶数截面的端壁附近存在马蹄涡。

关键词: 航空发动机;流体动力学;流动分布;扰流器;热交换器

Abstract: In a specially constructed small wind tunnel, an experimental study is performed onflow field in stagged pin fin array. Obtained results for six Reynold numbers give detailed distributionsof the flow field. The analysis reveals that the velocity distributions for different Reynold numbers arequite similar. Channel vortex and horseshoe vortex are observed in some of measuring sections.

Key words: Aircraft engine;Fluid dynamics;Flow distribution;Spoiler;Heat exchanger