Journal of Zhejiang University

Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.3 P.185-196

Numerical simulation of aerodynamic heating and stresses of chemical vapor deposition ZnS for hypersonic vehicles*

Author(s): Yuan-chun Liu¹,Yu-rong He¹,Jia-qi Zhu²,Jie-cai Han²,Dong-liang Quan³
Affiliation(s): 1. 1. School of Energy Science & Engineering, Harbin Institute of Technology, Harbin 150001, China more
Corresponding email(s): rong@hit.edu.cn
Key Words: Chemical vapor deposition (CVD) ZnS, Infrared window material, Thermal and stress responses, Hypersonic vehicles

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Yuan-chun Liu, Yu-rong He, Jia-qi Zhu, Jie-cai Han, Dong-liang Quan. Numerical simulation of aerodynamic heating and stresses of chemical vapor deposition ZnS for hypersonic vehicles[J]. Journal of Zhejiang University Science A, 2014, 15(3): 185-196.

@article{title="Numerical simulation of aerodynamic heating and stresses of chemical vapor deposition ZnS for hypersonic vehicles",
author="Yuan-chun Liu, Yu-rong He, Jia-qi Zhu, Jie-cai Han, Dong-liang Quan",
journal="Journal of Zhejiang University Science A",
volume="15",
number="3",
pages="185-196",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300341"
}

%0 Journal Article
%T Numerical simulation of aerodynamic heating and stresses of chemical vapor deposition ZnS for hypersonic vehicles
%A Yuan-chun Liu
%A Yu-rong He
%A Jia-qi Zhu
%A Jie-cai Han
%A Dong-liang Quan
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 3
%P 185-196
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300341

TY - JOUR
T1 - Numerical simulation of aerodynamic heating and stresses of chemical vapor deposition ZnS for hypersonic vehicles
A1 - Yuan-chun Liu
A1 - Yu-rong He
A1 - Jia-qi Zhu
A1 - Jie-cai Han
A1 - Dong-liang Quan
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 3
SP - 185
EP - 196
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300341

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: hypersonic vehicles subjected to strong aerodynamic forces and serious aerodynamic heating require more stringent design for an infrared window. In this paper, a finite element analysis is used to present the distributions of thermal and stress fields in the infrared window for hypersonic vehicles based on flowfield studies. A theoretical guidance is provided to evaluate the influence of aerodynamic heating and forces on infrared window materials. The aerodynamic heat flux from Mach 3 to Mach 6 flight at an altitude of 15 km in a standard atmosphere is obtained through flowfield analysis. The thermal and stress responses are then investigated under constant heat transfer coefficient boundary conditions for different Mach numbers. The numerical results show that the maximum stress is higher than the material strength at Mach 6, which means a failure of the material may occur. The maximum stress and temperatures are lower than the material strength and melting point under other conditions, so the material is safe.

高速飞行器化学气相沉积ZnS窗口材料气动热和应力数值模拟研究

研究目的：基于飞行器外流场的分析，计算窗口材料的温度场和应力场。
创新要点：1.通过流场分析，得到窗口处热流密度和换热系数；2.通过热-结构分析，得到窗口的温度场和应力场；3.为窗口材料的气动力和气动热的材料破坏提供理论依据。
研究方法：1.计算标准大气情况下，高度为15 km、马赫数分别为3、4、5和6时飞行器的流场；2.根据流场分析得到数据，用有限元法计算红外窗口的热-结构场。
重要结论：1.当马赫数为6时，材料的最大应力高于材料的强度，材料失效；2.当马赫数为3、4和5时，材料的最大温度和最大应力均低于安全值，材料符合条件。

关键词：化学气相沉淀（CVD）ZnS；红外窗口；气动热；热应力；超声速飞行器