摘要
在脉冲风洞中M∞=9.85,12.0,和15.5，相应雷诺数Re∞=(1.0×107, 6.4×105和3.2×105)/m的来流条件下，分别用平板和平头圆柱模型测量了狭窄缝隙内的详细热流分布。缝隙宽2mm,深25mm,模型攻角α=0°～90°，缝隙相对气流的偏转角β=0°～90°。本文给出了缝内典型热流分布结果，讨论了马赫数、攻角和偏转角对缝内热流分布的影响，并与现有计算方法和实验数据进行了比较。
：Detailed heat transfer distributions within a deep g ap were measured with both a sharp leading edge flat plate and a flat cylinder at free stream Ma ch numbers of 9.85,12.0,15.5 and corresponding unit Reynolds numbers of (1.0×10 7,6.4×105,3.2×105)/m in CAS impulse tunnels.The gap was 2mm wide, 25mm d eep and 100mm long.Attack angles α ranged from 0° to 90° and deflections β from 0° to 90°.In this paper, typical heating distributions on the gap wall were presented; effects of Mach number, attack angle and deflection on hea t transfer to the gap wall were discussed;and comparisons between measured and p redicted gap heating were made.
出处
《流体力学实验与测量》
EI
CSCD
2000年第4期1-6,共6页
Experiments and Measurements in Fluid Mechanics
关键词
缝隙
热流分布
高超声速流
脉冲风洞
deep gap
heat transfer distribution
hypersonic flow
impulse tunnel
