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Energy conservation and H theorem for the Enskog-Vlasov equation

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Resumo(s)

The Enskog-Vlasov (EV) equation is a widely used semiphenomenological model of gas-liquid phase transitions. We show that it does not generally conserve energy, although there exists a restriction on its coefficients for which it does. Furthermore, if an energy-preserving version of the EV equation satisfies an H theorem as well, it can be used to rigorously derive the so-called Maxwell construction which determines the parameters of liquid-vapor equilibria. Finally, we show that the EV model provides an accurate description of the thermodynamics of noble fluids, and there exists a version simple enough for use in applications.

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Palavras-chave

Energy conservation H theorem Enskog-Vlasov equation . Faculdade de Ciências Exatas e da Engenharia

Contexto Educativo

Citação

Benilov, E. S., & Benilov, M. S. (2018). Energy conservation and H theorem for the Enskog-Vlasov equation. Physical Review E, 97(6), 062115. DOI: 10.1103/physreve.97.062115

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Fascículo

Editora

American Physical Society

Licença CC

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