实验流体力学2013，Vol.27Issue(2)：14-18,23,6.
一种进气道自起动特性检测方法
A test method for inlet self-starting ability detection
摘要
Abstract
A new test method was developed to examine the self-starting ability of hypersonic inlets in a shock tunnel. It adopted a light obstacle as a flow plug, which could be rapidly blown out of the duct, to choke the inlet flow for unstarting at the initial stage of the shock tunnel operation. Simultaneous high speed schlieren imaging and surface pressure measurements were applied to determine whether the inlet would be restarted after the obstacle action. The initiations of uristart and restart processes were observed. A generic hypersonic inlet which exhibited self-starting characteristic was achieved in the shock tunnel. With the help of the newly developed test method, the flow characteristics in the starting/unstarting dual-solution area were also observed in an inlet with a large internal concentration ratio. The results indicate that various flow characteristics in the inlet can be performed in shock tunnels.关键词
高超声速进气道/自起动/激波风洞/压力测量/纹影图像Key words
hypersonic inlet/ inlet self-starting/ shock tunnel/ pressure measurement/ schlieren imaging分类
航空航天引用本文复制引用
李祝飞,高文智,李鹏,姜宏亮,杨基明..一种进气道自起动特性检测方法[J].实验流体力学,2013,27(2):14-18,23,6.基金项目
国家自然科学基金(11072237) （11072237）
