Anisotropic Diffusion in Driven Convection Arrays.
advection enhanced diffusion
brownian motion
classical transport
convection rolls
Journal
Entropy (Basel, Switzerland)
ISSN: 1099-4300
Titre abrégé: Entropy (Basel)
Pays: Switzerland
ID NLM: 101243874
Informations de publication
Date de publication:
14 Mar 2021
14 Mar 2021
Historique:
received:
24
02
2021
revised:
10
03
2021
accepted:
11
03
2021
entrez:
3
4
2021
pubmed:
4
4
2021
medline:
4
4
2021
Statut:
epublish
Résumé
We numerically investigate the transport of a Brownian colloidal particle in a square array of planar counter-rotating convection rolls at high Péclet numbers. We show that an external force produces huge excess peaks of the particle's diffusion constant with a height that depends on the force orientation and intensity. In sharp contrast, the particle's mobility is isotropic and force independent. We relate such a nonlinear response of the system to the advection properties of the laminar flow in the suspension fluid.
Identifiants
pubmed: 33799439
pii: e23030343
doi: 10.3390/e23030343
pmc: PMC7999235
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : National Natural Science Foundation of China
ID : 11875201, 11935010
Organisme : Science and Engineering Research Board
ID : YSS/2014/000853, F.30-92/2015
Références
Phys Rev A Gen Phys. 1987 Jul 1;36(1):261-267
pubmed: 9898679
Phys Rev Lett. 2001 Jul 2;87(1):010602
pubmed: 11461454
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Jul;80(1 Pt 1):011120
pubmed: 19658666
Phys Rev Lett. 2016 Oct 21;117(17):174501
pubmed: 27824440
Phys Rev Lett. 2007 Aug 17;99(7):078101
pubmed: 17930927
Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Jan;85(1 Pt 1):011101
pubmed: 22400506
Science. 1986 Jul 18;233(4761):330-4
pubmed: 17737620
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Oct;82(4 Pt 1):041121
pubmed: 21230252
J Chem Phys. 2011 Feb 7;134(5):051101
pubmed: 21303085
Nature. 2003 Sep 25;425(6956):376-80
pubmed: 14508482
Phys Rev Lett. 2018 May 18;120(20):200606
pubmed: 29864325
Soft Matter. 2019 Mar 20;15(12):2627-2637
pubmed: 30810571
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Nov;80(5 Pt 1):051401
pubmed: 20364979
Phys Rev Lett. 2007 Aug 3;99(5):058303
pubmed: 17930802
Phys Rev Lett. 2010 Jan 15;104(2):020601
pubmed: 20366581
Phys Rev Lett. 2014 Dec 31;113(26):268002
pubmed: 25615388
Chemphyschem. 2009 Jan 12;10(1):45-54
pubmed: 19025741
Phys Rev Lett. 2006 Mar 31;96(12):127004
pubmed: 16605948