空气动力学学报Issue(6)：861-867,7.DOI:10.7638/kqdlxxb-2012.0220
基于多场耦合的飞行器热环境数值分析方法研究
Multi-field coupling numerical analysis approach for aerothermal environment of hypersonic vehicles
摘要
Abstract
The development of new-generation hypersonic vehicles presents a major challenge in the de-sign of thermal protection systems.Sustained hypersonic flight within the atmosphere can result in severe aerodynamic heating phenomena.It is a physical fact that significant interaction occurs between the external aerodynamic heating and the structural heat transfer within the vehicles.Through analyzing the multi-field coupling characteristics of aerothermal environment of hypersonic vehicles,a multi-field coupling numerical analysis approach for predicting aerothermal environment is proposed in this paper.This approach couples the computational fluid dynamics (CFD)codes based on the Navier-Stokes equations with the general com-mercial finite element method (FEM)software by the reliable interfacial data exchange method.Considering a cylindrical leading edge as test case,the fluid-structural thermal coupling characteristics along the steady and unsteady flight trajectory is numerically investigated.It is indicated that the proposed approach could ac-curately predict the fluid-structural thermal coupling characteristics,and achieve the analysis of spatial and temporal distribution characteristics of aerothermal environment,thus providing the reliable analysis tool for the material selection and optimization in the design of thermal protection systems.关键词
多场耦合/长时间气动加热/热环境/防热设计/高超声速飞行器Key words
multi-field coupling/long-duration aeroheating/aerothermal environment/thermal protec-tion design/hypersonic vehicles分类
航空航天引用本文复制引用
张胜涛,陈方,刘洪..基于多场耦合的飞行器热环境数值分析方法研究[J].空气动力学学报,2014,(6):861-867,7.基金项目
国家自然科学基金项目 （）
