| 载人飞船光学窗口组件烧蚀热响应的数值计算 |
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| 引用本文： | 余泽楚,桂业伟,陈兰,张健.载人飞船光学窗口组件烧蚀热响应的数值计算[J].工程热物理学报,1998(6). |
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| 作者姓名： | 余泽楚 桂业伟 陈兰 张健 |
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| 作者单位： | 中国空气动力研究与发展中心!四川绵阳，621000，中国空气动力研究与发展中心!四川绵阳，621000，中国空气动力研究与发展中心!四川绵阳，621000，中国空气动力研究与发展中心!四川绵阳，621000 |
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| 摘 要： | 1引言载人飞船光学窗口的热结构设计十分重要，特别是其中密封圈在高温下是否安全不漏气，直接关系到航天局的生命安危。这就要求对光学窗口组件在再入热环境下的烧蚀及其热响应做精细的计算和试验。由于热结构问题尚无相似律，地面实验要用1：1模型。这种试验国内尚无办法进行，在国外试验费用高。用有限次数的地面试验，验证计算软件，然后用软件计算大量数据，将地面试验推广到飞行状态，是进行本课题研究的主要目的。光学窗口组件安装于返回舱倒锥面上，一般由三层耐热玻璃和高、低密度两种烧蚀材料及铝合金构架构成，见图1。本文就是研…
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| 关 键 词： | 烧蚀 传热 热响应 热辐射 数值模拟 |
NUMERICAL SIMULATION OF THE 3-D TRANSIENT RESPONSE OF ABLATION SYSTEM FOR THE OPTICAL VIEWING WINDOWS OF MANNED SMCESHIP |
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| YU Zechu,GUI Yewei,CHEN Lan,ZHANG Jian.NUMERICAL SIMULATION OF THE 3-D TRANSIENT RESPONSE OF ABLATION SYSTEM FOR THE OPTICAL VIEWING WINDOWS OF MANNED SMCESHIP[J].Journal of Engineering Thermophysics,1998(6). |
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| Authors: | YU Zechu GUI Yewei CHEN Lan ZHANG Jian |
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| Abstract: | A method for computing the thermal response of the optical viewing windows on thereentery manned spaceship is presented in this paper. The solutions were obtained throughthree loosely coupled modules, which were the model to calculate the charring materialthermal response and ablation, the model to predict the heat transfer with simplified fluxdivergence of radiation in multiple glass, and the model of independent-action radiation onthe inner surface of cavity and slit. Three dimensional computations for both steady-stateand trajectory-based transient heating condition were performed here. |
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| Keywords: | ablation radiation heat transfer numerical simulation |
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