| 基于格林函数法的板翅式冷板瞬态热分析(英文) |
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| 引用本文： | 苏向辉,许锋.基于格林函数法的板翅式冷板瞬态热分析(英文)[J].中国航空学报,2011(3):243-248. |
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| 作者姓名： | 苏向辉 许锋 |
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| 作者单位： | 南京航空航天大学航空宇航学院; |
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| 基金项目： | Aeronautical Science Foundation of China (2008ZC52024) |
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| 摘 要： | 在航空电子电路设计和温度监控过程中,为保证电子元件安装部位的温度不超过允许值,需要对板翅热沉温度进行准确分析。而在发热元件为非均匀热源作用下的冷板表面温度显式解析解,可提供电子元件发热量与航空电子设备各点温升的直观了解。本文建立了板翅式冷板的三维瞬态传热模型,提出了板翅式冷板的热模拟解析求解方法,通过算例计算了板翅式冷板在非均匀热流密度下电子元件不同安装位置的瞬态温升。分析解结果与试验测量结果误差不超过3K。
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| 关 键 词： | 电子设备冷却 热模拟 格林函数 板翅热沉 多热源 瞬态传热 |
Transient Thermal Analysis of a Plate Fin Heat Sink with Green’s Function |
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| SU Xianghui XU Feng College of Aerospace Engineering,Nanjing University of Aeronautics , Astronautics,Nanjing ,China.Transient Thermal Analysis of a Plate Fin Heat Sink with Green’s Function[J].Chinese Journal of Aeronautics,2011(3):243-248. |
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| Authors: | SU Xianghui XU Feng College of Aerospace Engineering Nanjing University of Aeronautics Astronautics Nanjing China |
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| Institution: | SU Xianghui XU Feng College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China |
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| Abstract: | The accurate analyses for a plate fin heat sink with the ability to control the temperature of the avionics devices within a pre-set controllable temperature range are required both in the process of circuit design and for the real-time temperature monitoring purposes.In order to provide an insight into the behavior of the temperature of a plate fin heat sink subjected non-uniform heat density on the surfaces,it is necessary to obtain accurate analytical solutions yielding explicit formulas relating the dis... |
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| Keywords: | avionics cooling thermal simulation Green’s function methods heat sinks multiple heat sources transient heat transfer |
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