Extended hard-sphere model for the viscosity of dense fluids
File(s)
Accepted version
Author(s)
Ciotta, F
Trusler, JPM
Vesovic, V
Type
Journal Article
Abstract
An extended hard-sphere model is reported that may be applied to correlate and predict the viscosity of gases, liquids and supercritical fluids. The method is based on the hard-sphere model of Dymond and Assael and uses their roughness factors and molar core volumes to relate reduced viscosity to a universal function of reduced volume. The extended model behaves correctly in the limit of low densities and offers improved accuracy at high densities. The new universal reference function was determined from a large database of experimental viscosities for alkanes extending up to reduced densities of 0.84. It has been tested by correlating the viscosity of two high-viscosity liquids not used in the development of the universal function and has shown to perform satisfactorily up to reduced densities of approximately 0.9.
Date Issued
2013-12-11
Date Acceptance
2013-11-22
Citation
Fluid Phase Equilibria, 2013, 363, pp.239-247
ISSN
0378-3812
Publisher
Elsevier
Start Page
239
End Page
247
Journal / Book Title
Fluid Phase Equilibria
Volume
363
Copyright Statement
© 2013, Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000331494600029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Technology
Thermodynamics
Chemistry, Physical
Engineering, Chemical
Chemistry
Engineering
CHEMISTRY, PHYSICAL
ENGINEERING, CHEMICAL
THERMODYNAMICS
Alkanes
Correlation
Hard-sphere theory
High pressure
Liquid
Viscosity
POTENTIAL-ENERGY SURFACE
TRANSPORT-COEFFICIENTS
HIGH-PRESSURES
THERMODYNAMIC PROPERTIES
NORMAL-BUTANE
THERMOPHYSICAL PROPERTIES
LIQUID HYDROCARBONS
ALKANE MIXTURES
SHEAR VISCOSITY
BINARY-MIXTURES
Chemical Engineering
0203 Classical Physics
0904 Chemical Engineering
Publication Status
Published