Temperature dependent Korteweg stress coefficient from the Enskog-Vlasov equation

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dc.contributor.authorBhattacharjee, Rahul
dc.contributor.authorStruchtrup, Henning
dc.contributor.authorRana, Anirudh Singh
dc.date.accessioned2024-12-20T16:34:14Z
dc.date.available2024-12-20T16:34:14Z
dc.date.issued2024
dc.description.abstractEnskog-Vlasov equation—a nonlinear partial-integro-differential equation, provides a robust framework for analyzing liquid dynamics and phase transition. The Vlasov force expanded using Taylor series yields Korteweg stress with two constant coefficients. The first coefficient yields the van der Waals like contribution to equilibrium pressure, while the second coefficient determines the interfacial stresses/surface tension. In this article, we express the second Korteweg constant coefficient as a function of temperature. The developed model effectively captures the liquid-vapor interfacial region in equilibrium, reproducing the sharp interfacial structure predicted by the full Enskog-Vlasov equation. Additionally, we compare our results with those obtained through a particle-based approach, as studied by Frezzotti et.al (2019) [“Direct simulation Monte Carlo applications to liquid-vapor flows,” Physics of Fluids 31, 6 (2019)]. The proposed model balances simplicity with computational efficiency, comprehensively examined within the paper.
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.identifier.citationBhattacharjee, R., Struchtrup, H., & Rana, A. S. 2024. Temperature dependent Kortesweg stress coefficient from the Enskog–Vlasov equation. Physics of Fluids, 36, 122139. https://doi.org/10.1063/5.0244649
dc.identifier.otherhttps://doi.org/10.1063/5.0244649
dc.identifier.urihttps://hdl.handle.net/1828/20875
dc.language.isoen
dc.publisherPhysics of Fluids
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleTemperature dependent Korteweg stress coefficient from the Enskog-Vlasov equation
dc.typeArticle

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