NDLI: A theory-based method for correlation and prediction of dense-fluid transport properties

Content Provider	Springer Nature Link
Author	Dymond, J. H.
Copyright Year	1977
Abstract	Dense-fluid transport property data for a wide range of compounds have been successfully correlated on the basis of universal curves for the reduced diffusion coefficient,D $^{}$, the reduced viscosity, η$^{}$ and the reduced thermal conductivity, λ$^{}$, against the reduced volumeV/V $_{ o }$, whereV is the molar volume, andV $_{ o }$ is a characteristic volume equal to the volume of close packing for a system of hard spheres. The reduced transport properties,X $^{}$, are defined in terms of the low-density hard-sphere values by (X/X $_{ o }$)(V/V $_{ o }$)$^{2–3}$, whereX is ν, λ, or the product of the number density and the diffusion coefficient. To provide a theoretical justification for this approach, extensive computer simulation results for these transport properties, given in the literature for a system of Lennard-Jones (12–6) molecules, have been considered. It is found that the reduced transport properties for different temperatures are superimposable upon the results for any reference isotherm when plotted versus logV, as found previously for real fluids. However, to reproduce this density dependence at any given temperature on the basis of the universal curves, the characteristic volume for self-diffusion must be greater than that for viscosity or thermal conductivity.
Starting Page	303
Ending Page	312
Page Count	10
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	18
Issue Number	2
e-ISSN	15729567
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1977-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	correlation dense fluids diffusion Dymond-Assael equation Enskog theory thermal conductivity transport properties viscosity Physical Chemistry Industrial Chemistry/Chemical Engineering Mechanics Condensed Matter
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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