Numerical simulation of thermal radiation effect for plane window in aerodynamic thermal environment

LIU Yuanchun; YUAN Zigui; LI Tianyu; HE Yurong; ZHU Jiaqi

doi:10.3969/j.issn.0438-1157.2014.z1.030

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Numerical simulation of thermal radiation effect for plane window in aerodynamic thermal environment

更新时间：2025-12-10

- Numerical simulation of thermal radiation effect for plane window in aerodynamic thermal environment
- CIESC Journal Issue S1, Pages: 188-193(2014)
- 作者机构：
  
  1. 哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001
  2. 哈尔滨工业大学复合材料与结构研究所,黑龙江,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.z1.030
  CLC： K124
- Online First：30 May 2014，
  
  Published：30 May 2014
- 稿件说明：
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LIU Yuanchun, YUAN Zigui, LI Tianyu, et al. Numerical simulation of thermal radiation effect for plane window in aerodynamic thermal environment[J]. CIESC Journal, 2014, (S1): 188-193.
DOI：

LIU Yuanchun, YUAN Zigui, LI Tianyu, et al. Numerical simulation of thermal radiation effect for plane window in aerodynamic thermal environment[J]. CIESC Journal, 2014, (S1): 188-193. DOI： 10.3969/j.issn.0438-1157.2014.z1.030.

摘要

采用有限元法研究飞行高度为15 km不同马赫数下CVD ZnS的温度场和应力场分布情况。随后，根据窗口的温度场分布，仿真得到窗口干扰辐射强度的分布，从而对窗口的气动热辐射效应进行评估。模拟结果表明，温度在初始阶段急剧升高，随后达到稳定，同时，应力响应在极短的时间内达到最大值，随后降低。可见，窗口的成像质量随马赫数的增加急剧降低，红外窗口的热辐射是制约红外成像质量的重要因素。

Abstract

In this paper

a finite element analysis is used to present the distributions of thermal fields and stress fields at different Mach numbers at an altitude of 15 km in a standard atmosphere for the CVD ZnS plane window. Then

the radiation intensity distribution of the window is obtained according to the temperature distribution. The results show that the temperature increases sharply in a short time

then the temperature distribution remains stable. The stress reaches the maximum value in an extremely short time and then decreases. The imaging quality of the plane window rapidly decreases with increasing the Mach number. The thermal radiation effect is one key factor for the quality of infrared image.

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