| 圆球物体非稳态导热平均温度集总参数法探讨 |
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| 引用本文： | 顾祥红.圆球物体非稳态导热平均温度集总参数法探讨[J].大连铁道学院学报,2009(1):91-93. |
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| 作者姓名： | 顾祥红 |
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| 作者单位： | 大连大学建筑工程学院; |
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| 基金项目： | 辽宁省教育厅高等学校科学研究计划资助项目(2004F104) |
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| 摘 要： | 对于温度场随时间变化的非稳态导热问题，集总参数法是最简单的求解方法，但是这一方法只适用于Bi〈1的条件。拓展传统的非稳态导热集总参数方法，提出在0〈Bi〈∞条件下，圆球物体非稳态导热平均温度集总参数分析方法，建立了平均温度瞬态响应关系式。讨论球体平均取值位置，并进行数值分析，给出了适于工程应用的辅助参数表，比通用的Heisler图解法更为简洁方便。
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| 关 键 词： | 非稳态导热 集总参数方法 温度瞬态响应 |
Lumped Parameter Analysis Method of Unsteady-State Conduction of Sphere |
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| GU Xiang-hong.Lumped Parameter Analysis Method of Unsteady-State Conduction of Sphere[J].Journal of Dalian Railway Institute,2009(1):91-93. |
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| Authors: | GU Xiang-hong |
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| Institution: | GU Xiang-hong(Civil , Architectural Engineering College,Dalian University,Dalian 116622,China) |
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| Abstract: | Lumped parameter analysis method is the most convenient way to solute unsteady-state. But the method sets a limit on Bi 〈 1. The paper extends the traditional lumped parameter analysis method of unsteady-state. Under the convection boundary 0 〈 Bi 〈 ∞, a mean temperature lumped parameter analysis method is studied and the mean temperature response formula has been established. Taking a sphere as an example, the paper presents the regular pattern of the transient mean temperature value and discusses the numerical analysis. The method for solving the unsteady-state conduction in the paper is more practical than the M.P. Heisler charts. |
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| Keywords: | unsteady-state conduction lumped parameter analysis method transient mean temperature |
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