Elementary vibrational model for transport properties of dense fluids

SA Khrapak - Physics Reports, 2024 - Elsevier
A vibrational model of transport properties of dense fluids assumes that solid-like oscillations
of atoms around their temporary equilibrium positions dominate the dynamical picture. The …

[HTML][HTML] Revisiting the Stokes-Einstein relation without a hydrodynamic diameter

L Costigliola, DM Heyes, TB Schrøder… - The Journal of chemical …, 2019 - pubs.aip.org
We present diffusion coefficient and shear viscosity data for the Lennard-Jones fluid along
nine isochores above the critical density, each involving a temperature variation of roughly …

Thermodynamic and dynamical properties of the hard sphere system revisited by molecular dynamics simulation

S Pieprzyk, MN Bannerman, AC Brańka… - Physical Chemistry …, 2019 - pubs.rsc.org
Revised thermodynamic and dynamical properties of the hard sphere (HS) system are
obtained from extensive molecular dynamics calculations carried out with large system sizes …

Stokes–Einstein relation without hydrodynamic diameter in the TIP4P/Ice water model

SA Khrapak, AG Khrapak - The Journal of Chemical Physics, 2023 - pubs.aip.org
It is demonstrated that self-diffusion and shear viscosity data for the TIP4P/Ice water model
reported recently [Baran et al., J. Chem. Phys. 158, 064503 (2023)] obey the microscopic …

Freezing density scaling of fluid transport properties: Application to liquefied noble gases

SA Khrapak, AG Khrapak - The Journal of Chemical Physics, 2022 - pubs.aip.org
A freezing density scaling of transport properties of the Lennard-Jones fluid is rationalized in
terms of Rosenfeld's excess entropy scaling and isomorph theory of Roskilde-simple …

Universal nucleation behavior of sheared systems

A Goswami, IS Dalal, JK Singh - Physical Review Letters, 2021 - APS
Using molecular simulations and a modified classical nucleation theory, we study the
nucleation, under flow, of a variety of liquids: different water models, Lennard-Jones, and …

Stokes–Einstein relation in simple fluids revisited

S Khrapak - Molecular Physics, 2020 - Taylor & Francis
ABSTRACT In this Research Note the Zwanzig's formulation of the Stokes–Einstein (SE)
relation for simple atomistic fluids is re-examined. It is shown that the value of the coefficient …

Microscopic origins of the viscosity of a Lennard-Jones liquid

F Rizk, S Gelin, AL Biance, L Joly - Physical Review Letters, 2022 - APS
Unlike crystalline solids or ideal gases, transport properties remain difficult to describe from
a microscopic point of view in liquids, whose dynamics result from complex energetic and …

System size dependence of the diffusion coefficients in MD simulations: A simple correction formula for pure dense fluids

SA Khrapak - The Journal of Physical Chemistry B, 2024 - ACS Publications
A practical correction formula relating the self-diffusion coefficient of dense liquids from
molecular dynamics (MD) simulations with periodic boundary conditions to the self-diffusion …

Vibrational model of heat conduction in a fluid of hard spheres

S Khrapak - Applied Sciences, 2022 - mdpi.com
Application of a vibrational model of heat transfer to a fluid made of hard spheres is
discussed. The model was originally proposed to describe heat conduction in fluids with soft …