Molecular dynamics simulations of momentum and thermal diffusion properties of near-critical argon along isobars

Molecular dynamics simulations of momentum and thermal diffusion properties of near-critical... Article history: Three basic diffusion properties of argon – shear viscosity, bulk viscosity and thermal conductivity – were Received 18 October 2015 studied in the neighborhood of the critical point using molecular dynamics (MD) and the Lennard-Jones Received in revised form 11 April 2016 potential energy function. MD simulations were performed along the 1.0P and 1.2P isobars. Green-Kubo c c Accepted 11 April 2016 relations and a Lennard-Jones pair potential were used. Four different sets of Lennard-Jones parameters Available online 12 April 2016 were used. A comparison of computed shear viscosity and thermal conductivity values with data available from the National Institute of Standards and Technology (NIST) displayed a good agreement. Results for Keywords: bulk viscosity indicated that values of this property cannot be neglected in this thermodynamic region, Shear viscosity a result that violates the traditional and much-assumed Stokes hypothesis in classical fluid mechanics. Bulk viscosity Furthermore, it was shown that in the neighborhood of the critical region the bulk viscosity can have Thermal conductivity larger values than the shear viscosity. Equilibrium molecular dynamics Stokes hypothesis © 2016 Elsevier B.V. All rights reserved. 1. Introduction However, in the neighborhood of the critical point, availability of transport coefficient data http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Supercritical Fluids Elsevier

Molecular dynamics simulations of momentum and thermal diffusion properties of near-critical argon along isobars

Loading next page...
 
/lp/elsevier/molecular-dynamics-simulations-of-momentum-and-thermal-diffusion-r6gDtrl4ki
Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0896-8446
eISSN
1872-8162
D.O.I.
10.1016/j.supflu.2016.04.004
Publisher site
See Article on Publisher Site

Abstract

Article history: Three basic diffusion properties of argon – shear viscosity, bulk viscosity and thermal conductivity – were Received 18 October 2015 studied in the neighborhood of the critical point using molecular dynamics (MD) and the Lennard-Jones Received in revised form 11 April 2016 potential energy function. MD simulations were performed along the 1.0P and 1.2P isobars. Green-Kubo c c Accepted 11 April 2016 relations and a Lennard-Jones pair potential were used. Four different sets of Lennard-Jones parameters Available online 12 April 2016 were used. A comparison of computed shear viscosity and thermal conductivity values with data available from the National Institute of Standards and Technology (NIST) displayed a good agreement. Results for Keywords: bulk viscosity indicated that values of this property cannot be neglected in this thermodynamic region, Shear viscosity a result that violates the traditional and much-assumed Stokes hypothesis in classical fluid mechanics. Bulk viscosity Furthermore, it was shown that in the neighborhood of the critical region the bulk viscosity can have Thermal conductivity larger values than the shear viscosity. Equilibrium molecular dynamics Stokes hypothesis © 2016 Elsevier B.V. All rights reserved. 1. Introduction However, in the neighborhood of the critical point, availability of transport coefficient data

Journal

The Journal of Supercritical FluidsElsevier

Published: Aug 1, 2016

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off