Optimization Design Method for the Two-dimensional Scramjet Intake Considering Total Pressure Recovery

摘要：

The classical optimization of twodimensional supersonic inlets for maximum total pressure recovery is extended to two-dimensional scramjet inlets. The result that optimal supersonic inlets have shock waves of equal strength is often applied to scramjets. However the typical flow turning constraint required for scramjet, along with the lack of a terminating normal shock, lead to a more involved optimization problem. Despite this, optimization by the method of Lagrange multipliers indicates that scramjet inlets with maximum total pressure recovery have external shocks with almost equal strength. The optimal total pressure recovery and turning angles for some typical scramjet inlet configurations with up to ten shocks are presented. Two-dimensional scramjet inlets are optimized in the current work to produce maximum inviscid total pressure recovery by the method of Lagrange multipliers. It is worth noting that this method requires trivial amounts of computation time when compared with more general optimization techniques based on gradient methods or genetic algorithms.

关键词： Scramjet Intake Total pressure Optimization

作者: Jo Hyunsung Lee Hyoungjin Jeung Inseuck

作者单位: Department of Mechanical and Aerospace Engineering & Institute of Advanced Aerospace Technology,Seou Department of Mechanical and Aerospace Engineering & Institute of Advanced Aerospace Technology,Seou

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 1143-1146

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）