Heat Transfer Analysis of Thermal Protection Structures for Hypersonic Vehicles

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Zhou, Chen^1 ; Wang, Zhijin^1 ; Hou, Tianjiao^2

Minister Key Discipline Laboratory of Advanced Design Technology of Aircraft, Nanjing University of Aeronautics and Astronautics, Nanjing

210016, China^1

College of Aeronautics, Nanjing University of Aeronautics and Astronautics, Nanjing

210016, China^2

关键词: Analytical approach;    Heat transfer analysis;    Heat transfer problems;    Radiation boundary condition;    Temperature profiles;    Thermal optimization;    Thermal protection;    Thermal Protection System;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012020/pdf
DOI  :  10.1088/1757-899X/269/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This research aims to develop an analytical approach to study the heat transfer problem of thermal protection systems (TPS) for hypersonic vehicles. Laplace transform and integral method are used to describe the temperature distribution through the TPS subject to aerodynamic heating during flight. Time-dependent incident heat flux is also taken into account. Two different cases with heat flux and radiation boundary conditions are studied and discussed. The results are compared with those obtained by finite element analyses and show a good agreement. Although temperature profiles of such problems can be readily accessed via numerical simulations, analytical solutions give a greater insight into the physical essence of the heat transfer problem. Furthermore, with the analytical approach, rapid thermal analyses and even thermal optimization can be achieved during the preliminary TPS design.