基于高效数值方法的一种高超声速飞行器外形气动力/热综合优化设计研究  

Aerodynamic heat and force optimization for a hypersonic vehicle based on effective space marching and stream trace methods

作　　者：王荣[1] 张学军[1] 纪楚群[1] 白鹏[1] 周伟江[1] 

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《空气动力学学报》2014年第5期618-622,633,共6页Acta Aerodynamica Sinica

摘　　要：基于所发展的高效气动力/热快速预测方法,建立了适用于高超声速飞行器的综合考虑气动力与气动热特性的外形优化设计技术,并在一种高超声速飞行器外形设计中应用,通过优化设计改变了初始外形纵向静不稳定特性,优化后外形实现了纵向静稳定、大攻角自配平和非驻点表面最大热流下降的设计目标。所发展的方法为适应气动外形快速选型设计需求提供了有效的途径。Aerodynamic configuration optimization study for a hypersonic vehicle is performed in the paper.In the optimization progress,a parameterized model is used and auto grids are achieved efficiently by solving parabolic equations.The aerodynamic force and heat are predicted by the technique which combined effective space marching numerical method and engineering method based on tracking the surface stream trace respectively.The aerodynamic characteristic of longitudinal static stability of the optimized shape is acquired through design optimization for high trimming angle of attack,and the maximum surface heat flux decreased 24% compared to the original shape.The technique promoted is an effective approach suitable for aerodynamic configuration preliminary designs of high speed vehicles.

关 键 词：空间推进 流线追踪 优化设计 高超声速飞行器 气动力热 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]