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Brief Report

Prandtl Number in Classical Hard-Sphere and One-Component Plasma Fluids

by
Sergey Khrapak
* and
Alexey Khrapak
Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
*
Author to whom correspondence should be addressed.
Molecules 2021, 26(4), 821; https://doi.org/10.3390/molecules26040821
Submission received: 21 January 2021 / Revised: 2 February 2021 / Accepted: 3 February 2021 / Published: 5 February 2021
(This article belongs to the Special Issue Thermodynamics and Transport Properties of Fluids)
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Abstract

The Prandtl number is evaluated for the three-dimensional hard-sphere and one-component plasma fluids, from the dilute weakly coupled regime up to a dense strongly coupled regime near the fluid-solid phase transition. In both cases, numerical values of order unity are obtained. The Prandtl number increases on approaching the freezing point, where it reaches a quasi-universal value for simple dielectric fluids of about ≃1.7. Relations to two-dimensional fluids are briefly discussed.
Keywords: transport properties of fluids; Prandtl number; hard-sphere system; one-component plasma; thermal conductivity of fluids transport properties of fluids; Prandtl number; hard-sphere system; one-component plasma; thermal conductivity of fluids

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MDPI and ACS Style

Khrapak, S.; Khrapak, A. Prandtl Number in Classical Hard-Sphere and One-Component Plasma Fluids. Molecules 2021, 26, 821. https://doi.org/10.3390/molecules26040821

AMA Style

Khrapak S, Khrapak A. Prandtl Number in Classical Hard-Sphere and One-Component Plasma Fluids. Molecules. 2021; 26(4):821. https://doi.org/10.3390/molecules26040821

Chicago/Turabian Style

Khrapak, Sergey, and Alexey Khrapak. 2021. "Prandtl Number in Classical Hard-Sphere and One-Component Plasma Fluids" Molecules 26, no. 4: 821. https://doi.org/10.3390/molecules26040821

APA Style

Khrapak, S., & Khrapak, A. (2021). Prandtl Number in Classical Hard-Sphere and One-Component Plasma Fluids. Molecules, 26(4), 821. https://doi.org/10.3390/molecules26040821

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