国防科技大学学报2011，Vol.33Issue(4)：38-42,151,6.
基于再起动特性优化的高超声速进气道设计
Design Research of Scramjet Inlet Based on the Optimization of Restarting Characteristics
摘要
Abstract
The numerical study of hypersonic inlet flow with different inner compression ratface was carried out, aimed at exploring the influence of horizontal angle of lower inlet surface on inlet performance specially restarting characteristics. The result shows that the reduction of surface horizontal angle on the tail of separation bubble will improve the performance of unstart flow and decrease the restart Mach number, with the disadvantage of increasing length of inner compression surface and reducing the performance of start flow. To optimize the synthetic performance of inlet, a new design of inner compression lower surface composed of the concave surface in the front and the straight surface with small horizontal angle in the rear was proposed. Compared with the prototype, the performance of start flow drop lightly under the same length for new inlet, but the restart Mach number of latter reduce from 9.4 to 8.关键词
高超声速进气道/再起动特性/内收缩段设计/大规模分离区Key words
hypersonic inlet/ restart characteristics/ inner compression surface design/ separation bubble分类
航空航天引用本文复制引用
游进,夏智勋,刘冰,王登攀..基于再起动特性优化的高超声速进气道设计[J].国防科技大学学报,2011,33(4):38-42,151,6.基金项目
国家部委基金项目(9140A28030309KG01) （9140A28030309KG01）
