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首页> 外文期刊>Journal of Materials Engineering and Performance >Inverse Analysis of Heat Conduction in Hollow Cylinders with Asymmetric Source Distributions
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Inverse Analysis of Heat Conduction in Hollow Cylinders with Asymmetric Source Distributions

机译：源分布不对称的空心圆柱体中导热的反分析

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摘要

This paper presents an application of inverse analysis for determining both the temperature field histories and corresponding heat source distributions in hollow cylinders. The primary goal, however, is the development of an inversion infrastructure in a manner that allows taking advantage of all aspects related to its utility, including sensitivity analysis. The conditions generating heat sources are those resulting from intense pulsed-current electrical contact experiments. Under these conditions intense heat currents are generated due to the Joule conversion of the electric conduction currents. Asymmetry of the heat source is induced from the localized melting due to arc-enhanced electric conduction. Experimentally acquired temperature histories and melting domain boundary data are utilized to setup an inverse model of the heat conduction problem. This permits the construction of an estimate not only of the temperature field histories throughout the computational domain but also of an evaluation of the effective thermal diffusivity of the material involved.
机译：本文提出了反分析在确定中空圆柱体的温度场历史和相应热源分布方面的应用。但是，主要目标是以允许利用与效用相关的所有方面（包括敏感性分析）的方式开发反演基础结构。产生热源的条件是强脉冲电流电接触实验所产生的条件。在这些条件下，由于导电电流的焦耳转换，产生了强烈的热电流。由于电弧增强的电导，局部熔化导致热源的不对称。实验获得的温度历史记录和熔融域边界数据可用于建立热传导问题的逆模型。这不仅可以构建对整个计算域中温度场历史的估计，还可以构建对所涉及材料的有效热扩散率的评估。

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