矩形片状静止弹道扩散热传导的熵产率

IF 0.7 4区工程技术 Q3 MATHEMATICS, APPLIED

Journal of Computational and Theoretical Transport Pub Date : 2021-02-23 DOI:10.1080/23324309.2021.1896553

S. Mansoor, B. Yilbas

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引用次数: 1

摘要

摘要考虑了低维薄片的热力学不可逆性，考察了二维薄膜的熵产生率，求解了二维和矩形金刚石薄片的声子辐射传输方程。结合热辐射传热公式，对体积和总熵产生率进行了评估。在保持金刚石薄片面积不变的情况下，探讨了薄片纵横比（宽高比）对熵产生率的影响。研究结果表明，在固定边界条件下，熵产生率随纵横比的增加而增加。

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Entropy Generation Rate for Stationary Ballistic-Diffusive Heat Conduction in a Rectangular Flake

Abstract Thermodynamic irreversibility in low dimensional flake is considered and entropy generation rate in two-dimensional thin film is examined, Equation of phonon radiative transfer is solved for two-dimensional and rectangular diamond flake. Volumetric and total entropy generation rate are evaluated incorporating the formulation of thermal radiation heat transfer. The influence of flake aspect ratio (width to height) on the entropy generation rate is explored while keeping the Diamond flake area constant for all aspect ratios considered. The findings reveal that the entropy generation rate increases with increasing aspect ratio for fixed boundary conditions.

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来源期刊

Journal of Computational and Theoretical Transport Mathematics-Mathematical Physics

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： Emphasizing computational methods and theoretical studies, this unique journal invites articles on neutral-particle transport, kinetic theory, radiative transfer, charged-particle transport, and macroscopic transport phenomena. In addition, the journal encourages articles on uncertainty quantification related to these fields. Offering a range of information and research methodologies unavailable elsewhere, Journal of Computational and Theoretical Transport brings together closely related mathematical concepts and techniques to encourage a productive, interdisciplinary exchange of ideas.