期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
一种新型内乘波式进气道初步研究 被引量:41
1
作者 尤延铖 梁德旺 黄国平 《推进技术》 EI CAS CSCD 北大核心 2006年第3期252-256,共5页
提出了内乘波式进气道的设计概念。该进气道以内收缩锥轴对称流场为基础,采用流线追踪技术并截取激波面生成。它具有设计状态流量捕获能力强;三维压缩效率高;波系结构简单且无复杂角部流动,流动损失小等特点。采用该概念设计了来流马赫... 提出了内乘波式进气道的设计概念。该进气道以内收缩锥轴对称流场为基础,采用流线追踪技术并截取激波面生成。它具有设计状态流量捕获能力强;三维压缩效率高;波系结构简单且无复杂角部流动,流动损失小等特点。采用该概念设计了来流马赫数6的内乘波式进气道,CFD计算结果显示:粘性对该类进气道设计具有较大影响,附面层的发展会使按无粘条件设计的进气道性能有所下降。尽管还没有进行粘性修正,在相同设计马赫数条件下,内乘波式进气道压比、流量系数和总压恢复系数等性能高于某典型侧压式进气道。 展开更多
关键词 高超声速 ^内乘波进气道^+ 设计
下载PDF
ANALYSIS OF INTERNAL WAVERIDER INLET AND TYPICAL SIDEWALL COMPRESSION INLET PERFORMANCE 被引量:4
2
作者 黄国平 朱呈祥 +1 位作者 尤延铖 周淼 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2011年第1期120-128,共9页
A new internal waverider inlet with a rectangular shape of entrance and exit in front view is designed at Ma=6.0.The design is based on a better basic flowfield ICFC than traditional one and derived with the technolog... A new internal waverider inlet with a rectangular shape of entrance and exit in front view is designed at Ma=6.0.The design is based on a better basic flowfield ICFC than traditional one and derived with the technology of stream tracing and shock cutting.Comparison between the newly designed inlet and a typical sidewall compression inlet is given.The design Mach number and entrance shape of this new inlet are chosen according to the sidewall compression inlet.Numerical results show that most of the performance parameters of the internal waverider inlet are a bit higher than the sidewall inlet,such as the flow capture coefficient,total pressure recovery and the kinetic efficiency.The performances of these two inlets at off-design points are compared.The internal waverider inlet can capture more than 91% of incoming flow under all simulated conditions.Results show that internal waverider inlet using 3-D compression and high flow capture coefficient is a kind of fixed-geometry inlet with better performance. 展开更多
关键词 HYPERSONIC PERFORMANCE internal waverider inlet sidewall compression inlet
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部