瞬态热网络建模在多尺度系统中的应用第一部分:定义和验证

M. Miana, C. Cortés, J. Pelegay, J. R. Valdés, T. Pütz
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引用次数: 8

摘要

本文阐述了瞬态热网络建模(TTNM)的方法,用于研究系统中的非定常传热,其中多长度和时间尺度的存在使现有的计算或实验技术无法进行分析。TTNM基于降阶模型(ROMs),其建立的基本前提是,瞬态传热过程可以根据尺度分析得到的特征时间和长度尺度,通过连续的定态划分和等温元件的几何划分来建模。随后用典型的例子验证了该方法,并给出了应用于实际问题的考虑。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Transient Thermal Network Modeling Applied to Multiscale Systems. Part I: Definition and Validation
This paper formulates the methodology of transient thermal network modeling (TTNM) for the study of unsteady heat transfer in systems where the presence of multiple length and time scales prevents the analysis by means of current computational or experimental techniques. The TTNM is based on reduced order models (ROMs) and it is established under the essential premise that a transient heat transfer process can be modeled by its division in a succession of stationary states and the division of the geometry in isothermal elements, according to the characteristic time and length scales obtained by scale analysis. The methodology is subsequently validated with canonical examples and considerations are given for the application to practical problems.
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来源期刊
IEEE Transactions on Advanced Packaging
IEEE Transactions on Advanced Packaging 工程技术-材料科学:综合
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