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侧压式超燃进气道流场特性研究
INVESTIGATION ON SIDEWALL COMPRESSION SCRAMJET INLET

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文摘 应用表面油流和压力测量技术,结合数值模拟方法研究了超燃冲压发动机侧压式进气道无支板和有支板两种典型工况的基本流动特性.结果表明:由侧壁诱发的后掠激波与底板边界层相互作用,形成一对逆向旋转的漩涡,该漩涡在下游不断发展并偏离底板,在出口截面形成一个低马赫数低总压区;支板的引入增加了压缩率,但同时导致底板与侧壁边界层严重分离,使进气道性能偏离设计工况.
其他语种文摘 The flow field in a sidewall compression scramjet inlet is studied using the surface oil dot visualization, pressure measurements and numerical simulations. Two types of sidewall scramjet inlets with or without a strut are investigated. It is shown that a pair of converse vortices emanate from the fin-plate junction and then depart from the baseplate, which results in a region with low Mach number and low total pressure at the inlet exit. Furthermore, it is shown that the boundary layer separation on the sidewall and baseplate resulting from a strut degrades the performance of the inlet.
来源 力学与实践 ,2007,29(3):7-10 【扩展库】
关键词 超燃冲压发动机 ; 侧压式进气道 ; 流场显示
地址

中国科学院力学研究所, 高温气体动力学重点实验室, 北京, 100080

语种 中文
文献类型 研究性论文
ISSN 1000-0879
学科 力学
文献收藏号 CSCD:2824591

参考文献 共 7 共1页

1.  Trexler CA. Performance of an inlet for an integrated scramjet concept. J Aircraft,1974,11(9):589-591 被引 15    
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3.  Ye Fangrong. Effect of Sidewall Leading Edge Sweep Direction on Performance of A Hypersonic 3-D Inlet. Effect of Sidewall Leading Edge Sweep Direction on Performance of A Hypersonic 3-D Inlet.AIAA-2000-3600 被引 1    
4.  金志光. 高超侧压式进气道高焓脉冲风洞实验. 推进技术,2005,26(4):319-323 被引 21    
5.  Gaitonde DV. Sidewall interaction in an asymmetric simulated scramjet inlet configuration. Journal of Propulsion and Power,2001(17):579-584 被引 1    
6.  Schmisseur JD. Numerical Investigation of New Topologies in Strong Crossing Shock-wave/Turbulent Boundary Layer Interactions. Numerical Investigation of New Topologies in Strong Crossing Shock-wave/Turbulent Boundary Layer Interactions.AIAA 2000-0931,2000 被引 1    
7.  王世芬. 高超音速后掠激波与边界层干扰流场特性. 航空学报,1993,14(9):A449-A454 被引 2    
引证文献 3

1 龚鹏 带中心支板侧压进气道流场特性研究 实验流体力学,2008,22(1):31-35
被引 3

2 贾轶楠 内压缩波系对高超声速进气道自起动性能影响研究 实验流体力学,2019,33(3):60-67
被引 0 次

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