Abstract
The modeling and understanding of micro- and nano-scale transport processes have raised increasing attention and extensive investigation during the past decades. In this mini-review, we aim to summarize our recent progress on the non-equilibrium thermodynamics of micro- and nano-scale flow and heat transfer. Special emphasis is put on the entropy generation at the interface, which plays a dominant role at small scale due to the strong non-equilibrium nature of particle-boundary interaction. We also prove the thermodynamic compatibility of both the macroscopic hydrodynamic equation and the non-equilibrium boundary conditions from the perspective of bulk and interfacial entropy generations respectively, as supported by the kinetic theory of microscopic particles. The present review will contribute to a clearer elaboration of thermodynamics at micro/nano-scale and its statistical mechanical demonstration, and thus will promote its further development in the future.
Funding source: NSF grant of China
Award Identifier / Grant number: (No. 12272207)
Funding source: National Key R&D Program of China
Award Identifier / Grant number: (No. 2019YFA0708704)
Acknowledgments
The authors also appreciate helpful discussions with Prof. D. Jou and Prof. S.Y. Chen. Y.G. would like to appreciate the financial support of the starting-up funding (AUGA2160500923) from Harbin Institute of Technology and the NSF Fund for Excellent Young Scientists Fund Program (Overseas).
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: This work is financially supported by the starting-up funding from Harbin Institute of Technology, the NSF Fund for Excellent Young Scientists Fund Program (Overseas), the NSF grant of China (No. 12272207) and the National Key R&D Program of China (No. 2019YFA0708704).
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Data availability: Not applicable.
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