目 录
中文摘要
ABSTRACT
第一章 绪 论 ...................................................................................................................1
§1.1 研究的背景及意义 .............................................................................................. 1
§1.2 国内外研究现状及发展趋势 .............................................................................. 2
§1.2.1 研究现状 ........................................................................................................2
§1.2.2 电子设备热分析与设计的发展趋势 ............................................................4
§1.3 关键技术 .............................................................................................................. 5
§1.4 本文内容 .............................................................................................................. 7
第二章 功率器件及其散热装置温度场模型的建立 .....................................................9
§2.1 流体动力学基本方程 .......................................................................................... 9
§2.1.1 质量守恒方程 ................................................................................................9
§2.1.2 动量守恒方程 ..............................................................................................10
§2.2.3 能量守恒方程 ..............................................................................................12
§2.2 湍流模型 ............................................................................................................ 15
§2.3 控制方程的通用形式 ........................................................................................ 18
§2.4 初始条件与边界条件 ........................................................................................ 19
第三章 功率器件及其散热装置温度场的数值求解 ...................................................21
§3.1 有限容积法概述 ................................................................................................ 21
§3.2 积分形式的控制方程 ........................................................................................ 22
§3.3 控制方程的离散 ................................................................................................ 22
§3.3.1 对流-扩散方程的离散化 ..........................................................................23
§3.4 收敛的判断 ........................................................................................................ 26
第四章 功率器件散热器温度场仿真分析 ...................................................................27
§4.1 散热器物理模型 ................................................................................................ 27
§4.2 散热器温度场线性仿真分析 ............................................................................ 28
§4.3 散热器温度场的非线性动态仿真分析 ............................................................ 33
§4.3.1 FLOTHERM 简介 ........................................................................................ 33
§4.3.2 计算结果分析 ..............................................................................................33
§4.4 影响温度场的非线性的因素 ............................................................................ 38