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arXiv 1809.05412cond-mat.stat-mech
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多尺度动力学中的熵和熵产生

Entropy and Entropy Production in Multiscale Dynamics

Miroslav Grmela, Michal Pavelka, Vaclav Klika, Bing-Yang Cao, Nie Bendian

摘要:

热传导在三个层次上进行研究:平衡,傅立叶和Cattaneo。傅立叶层次是研究接近平衡的出发点,或者是从卡塔内奥层次研究接近平衡的最后阶段。这两项研究都把熵和热力学带到了傅立叶层次。在没有外部和内部影响阻止接近平衡的情况下,在后一种研究中出现的熵是在前一种研究中出现的经典熵的产物。如果阻止了接近平衡,那么在研究从卡塔内奥能级到傅立叶能级的接近过程中产生的熵仍然会把熵和热力学带到傅立叶能级,即使经典熵和经典热力学不存在。我们还注意到,用总熵产生为零来表征平衡态是不够的。

英文摘要:

Heat conduction is investigated on three levels: equilibrium, Fourier, and Cattaneo. The Fourier level is either the point of departure for investigating the approach to equilibrium or the final stage in the investigation of the approach from the Cattaneo level. Both investigations bring to the Fourier level an entropy and a thermodynamics. In the absence of external and internal influences preventing the approach to equilibrium the entropy that arises in the latter investigation is the production of the classical entropy that arises in the former investigation. If the approach to equilibrium is prevented, then the entropy that arises in the investigation of the approach from the Cattaneo level to the Fourier level still brings to the Fourier level the entropy and the thermodynamics even if the classical entropy and the classical thermodynamics is absent. We also note that vanishing total entropy production as a characterization of equilibrium state is insufficient.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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