Modeling of nanoscale liquid mixture transport by density functional hydrodynamics

Oleg Yu. Dinariev and Nikolay V. Evseev
Phys. Rev. E 95, 063307 – Published 13 June 2017

Abstract

Modeling of multiphase compositional hydrodynamics at nanoscale is performed by means of density functional hydrodynamics (DFH). DFH is the method based on density functional theory and continuum mechanics. This method has been developed by the authors over 20 years and used for modeling in various multiphase hydrodynamic applications. In this paper, DFH was further extended to encompass phenomena inherent in liquids at nanoscale. The new DFH extension is based on the introduction of external potentials for chemical components. These potentials are localized in the vicinity of solid surfaces and take account of the van der Waals forces. A set of numerical examples, including disjoining pressure, film precursors, anomalous rheology, liquid in contact with heterogeneous surface, capillary condensation, and forward and reverse osmosis, is presented to demonstrate modeling capabilities.

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  • Received 9 December 2016

DOI:https://doi.org/10.1103/PhysRevE.95.063307

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsInterdisciplinary PhysicsFluid DynamicsPolymers & Soft Matter

Authors & Affiliations

Oleg Yu. Dinariev and Nikolay V. Evseev*

  • Schlumberger Moscow Research, 13 Pudovkina Street, Moscow, Russia

  • *nevseev@slb.com

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Issue

Vol. 95, Iss. 6 — June 2017

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