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复合介质与界面传热的多物理模型与计算
  • 期刊名称：工程热物理学报, 29(10): 1711-1714, 2008.
  • 时间：0
  • 分类：TK124[动力工程及工程热物理—工程热物理;动力工程及工程热物理—热能工程]
  • 作者机构：[1]北京航空航天大学理学院应用物理系,北京100083, [2]中国科学院数学与系统科学研究院计算数学与科学工程计算所,北京100190
  • 相关基金：基金项目;国家自然科学基金重大研究计划项目（No.90405016）;国家重点基础研究发展规划资助项目（No.2006CB605102）.
  • 相关项目：空天飞行器材料与结构的性能评价及关键理论研究
关键词： 双曲型热传导方程, 复合介质与界面, 随机场, 分子动力学方法, 跨尺度算法, hyperbolic heat transfer equation, composite media and the interface, stochastic field, MD, multiscale algorithm
中文摘要：

本文针对周期和随机结构复相介质与界面的多尺度热问题，提出了一个多物理模型和耦合算法，内容包括：计算界面导热系数的分子动力学方法；随机结构宏观有效导热系数和温度场的均匀化与多尺度方法；界面温度场与宏观温度场的关联模式及局域场的量子力学修正。

英文摘要：

In this paper, we develop a multiphysical model and a coupled algorithm for the heat transfer of composite media and the interfaces. The present method is composed of three parts： （1） NEMD method for computing the heat transfer coefficients on the interfaces; （2） the homogenization method for calculating the macroscopic effective heat transfer coefficients and the multiscale method for evaluating the macroscopic temperature field in random heterogeneous media; （3） the quantum mechanical correction for the thermal field on the interfaces and the micro-to macro-scale coupling.

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空天飞行器材料与结构的性能评价及关键理论研究
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