DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Viscosity bounds in liquids with different structure and bonding types

Journal Article · · Physical Review. B

Recently, it was realized that liquid viscosity has a lower bound which is nearly constant for all liquids and is governed by fundamental physical constants. This was supported by experimental data in noble and molecular liquids. Here, we perform large-scale molecular dynamics simulations to ascertain this bound in two other important liquid types: the ionic molten salt system LiF and metallic Pb. We find that these ionic and metallic systems similarly have lower viscosity bounds corresponding to the minimum of kinematic viscosity of 10 7 m 2 / s . We show that this agrees with experimental data in other systems with different structures and bonding types, including noble, molecular, metallic, and covalent liquids. This expands the universality of viscosity bounds into the main system types known. Published by the American Physical Society 2024

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
NE0009288
OSTI ID:
2325096
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 9 Vol. 109; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

The viscosities of liquid uranium, gold and lead journal April 1967
Viscosity of LiF-BeF2 eutectic mixture () and LiF single salt at elevated temperatures journal September 1981
The effect of fluid viscosity on the erosion wear behavior of Ti(C,N)-based cermets journal April 2015
Molecular dynamics simulation of diffusion and viscosity of liquid lithium fluoride journal January 2016
The structure of molten FLiNaK journal August 2020
Transition in the supercritical state of matter: Review of experimental evidence journal December 2021
Reliable Viscosity Calculation from Equilibrium Molecular Dynamics Simulations: A Time Decomposition Method journal July 2015
Chemla Effect in Molten LiCl/KCl and LiF/KF Mixtures journal May 2003
DL_POLY_3: new dimensions in molecular dynamics simulations via massive parallelism journal January 2006
Diffusion coefficients and local structure in basic molten fluorides: in situ NMR measurements and molecular dynamics simulations journal January 2009
Internal mobilities and diffusion in an ionic liquid mixture journal January 2010
Viscosity of network liquids within Doremus approach journal April 2004
High‐Frequency Elastic Moduli of Simple Fluids journal December 1965
Minima of shear viscosity and thermal conductivity coefficients of classical fluids journal February 2022
The quantum mechanics of viscosity journal December 2021
Properties of condensed matter from fundamental physical constants journal October 2021
Interionic potentials in alkali halides and their use in simulations of the molten salts journal May 1976
Viscosity of Alkali Fluoride Ionic Melts at Temperatures up to 373.15 K above Melting Points journal September 2014
Equations of State of Solids for Geophysics and Ceramic Science book January 1995
Universal lower bounds on energy and momentum diffusion in liquids journal January 2021
Static and dynamic properties of a viscous silica melt journal August 1999
Universal interrelation between dynamics and thermodynamics and a dynamically driven “c” transition in fluids journal September 2021
Quantum mechanical interpretation of the minimum viscosity of metallic liquids journal November 2022
Bounds on Transport from Univalence and Pole-Skipping journal February 2021
Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics journal March 2005
Deviations from Arrhenius dynamics in high temperature liquids, a possible collapse, and a viscosity bound journal October 2022
Colloquium : The glass transition and elastic models of glass-forming liquids journal September 2006
Life at low Reynolds number journal January 1977
Minimal quantum viscosity from fundamental physical constants journal April 2020
Computer simulation of the properties of liquid metals: Gallium, lead, and bismuth journal April 2012
Lead-Cooled Fast Reactor Systems and the Fuels and Materials Challenges journal January 2007
Molten-Salt Reactors—History, Status, and Potential journal February 1970
Viscosity of Molten Alkali Fluorides [溶融アルカリ金属弗化物の粘度] journal January 1987

Similar Records

Related Subjects