空气动力学学报2019，Vol.37Issue(6)：957-966,10.DOI:10.7638/kqdlxxbG2017.0192
高超声速全机外形气动加热与结构传热快速计算方法
Rapid method for calculating aero-Gheating coupled with structure heat transfer on hypersonic vehicles
摘要
Abstract
A new rapid method is presented for computing aero﹣heating coupled with structural temperature field of thermal protection structure (TPS)for hypersonic vehicles.This method includes the numerical solution of inviscid flow and empirical method for aero﹣heating.In this method,the calculation of aerodynamic heating is simplified into two parts:the numerical solution of inviscid flow (outside the boundary layer ) around the aircraft and the empirical solution of heat flux inside the boundary layer.It has the advantages of dealing with flow over the complex configurations in numerical simulation and high efficiency in the engineering calculation. Furthermore,the present method also considers the effects of high temperature chemical non﹣equilibrium, the heat transfer process in thermal protection structure, and the dynamic interpolation method of traj ectory flight state.These considerations can highly efficiently analyze the flow field around the complex hypersonic vehicles,as well as the characteristics of thermal environment and heat﹣insulation structure temperature distribution with flying time.Numerical method developed in this paper is applied to solve hypersonic fluid﹣structura﹣l thermal coupled problems for hypersonic RAM﹣CII and X﹣3 7B configuration under flight conditions based on thermal protection system layout.The distributions of temperature and heat flux are obtained and the time﹣variant characteristics are analyzed.The calculation results show that the rapid computing technology is credible and can be used for the analysis of thermal protection systems and aerodynamic heating characteristics in hypersonic vehicles design.关键词
气动加热/结构传热/化学非平衡/弹道状态/高超声速流动/快速计算方法Key words
aero﹣heating/structure heat transfer/chemical non﹣equilibrium/traj ectory state/hypersonic flow/rapid method分类
航空航天引用本文复制引用
李佳伟,王江峰,程克明,伍贻兆..高超声速全机外形气动加热与结构传热快速计算方法[J].空气动力学学报,2019,37(6):957-966,10.基金项目
国家高技术研究发展计划(2012AA7060102) （2012AA7060102）
国家自然科学基金(90716031) （90716031）
江苏省研究生科研与实践创新计划(KYCX17_0235) （KYCX17_0235）
