Cited Article: Majumder M. Nanoscale hydrodynamics - Enhanced flow in carbon nanotubes
Alert Expires: 09 NOV 2010
Number of Citing Articles: 2 new records this week (2 in this e-mail)
Organization ID: 3b97d1bbc1878baed0ab183d8b03130b
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Title:
Dislodgement of carbon nanotube bundles under pressure driven flow
Authors:
Baowan, D; Cox, BJ; Hill, JM
Author Full Names:
Baowan, Duangkamon; Cox, Barry J.; Hill, James M.
Source:
NANOTECHNOLOGY 21 (15): Art. No. 155305 APR 16 2010
Language:
English
Document Type:
Article
KeyWords Plus:
ELECTROOSMOTIC FLOW; MASS-TRANSPORT; MEMBRANES
Abstract:
Experimental and predicted flow rates through carbon nanotubes vary considerably but generally are reported to be well in excess of that predicted by the conventional Poiseuille flow, and therefore nanotubes embedded in a matrix might provide membranes with exceptional mass transport properties. In this paper, applied mathematical modelling is undertaken to estimate the three forces acting on a nanotube bundle, namely the molecular interaction force, the viscous force, and the static pressure force. In deducing estimates of these forces we introduce a modification of the notion of the effective dead area for a carbon nanotube membrane, and we calculate the total forces necessary to push one or more of the nanotubes out of the bundle, thus creating a channel through which further enhancement of flow may take place. However, careful analysis shows that the nett dislodgement force is entirely independent on the useable flow area, but rather depends only on the total cross-secti!
onal area perpendicular to the flow. This rather surprising result is a consequence of the flow being steady and a balance of the viscous and pressure forces.
Reprint Address:
Baowan, D, Mahidol Univ, Fac Sci, Dept Math, Rama 6 Rd, Bangkok 10400, Thailand.
Research Institution addresses:
[Baowan, Duangkamon] Mahidol Univ, Fac Sci, Dept Math, Bangkok 10400, Thailand; [Baowan, Duangkamon] CHE, Ctr Excellence Math, Bangkok 10400, Thailand; [Cox, Barry J.; Hill, James M.] Univ Wollongong, Nanomech Grp, Sch Math & Appl Stat, Wollongong, NSW 2522, Australia
E-mail Address:
scdbw@mahidol.ac.th
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Cited Reference Count:
18
Times Cited:
0
Publisher:
IOP PUBLISHING LTD; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Subject Category:
Engineering, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
ISSN:
0957-4484
DOI:
10.1088/0957-4484/21/15/155305
IDS Number:
573HU
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Title:
Confined Liquid Flow in Nanotube: A Numerical Study and Implications for Energy Absorption
Authors:
Zhao, JB; Qiao, Y; Culligan, PJ; Chen, X
Author Full Names:
Zhao, Jianbing; Qiao, Yu; Culligan, Patricia J.; Chen, Xi
Source:
JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE 7 (2): 379-387 FEB 2010
Language:
English
Document Type:
Article
Author Keywords:
Nanofluid; Transport; Numerical Simulation
KeyWords Plus:
NANOPOROUS SILICA-GEL; CARBON NANOTUBES; MECHANOSENSITIVE CHANNELS; MOLECULAR-DYNAMICS; GATING MECHANISMS; LARGE-CONDUCTANCE; SURFACE-TREATMENT; WATER; INFILTRATION; NANOSCALE
Abstract:
Understanding nanofluidic behavior is of fundamental value to the development of many potential nano-technology applications, including high-performance energy absorption. We carry out non-equilibrium molecular dynamics (NEMD) simulations to study the transport characteristics of liquids in a confined nano-environment. It is shown that the distributed electric field arising from either an electrolyte water solution (due to the dissolved ions) or a partially charged solid surface, could lead to nanofluidic properties that are significantly different to those associated with pure water or a neutral nanotube. In addition, the nanopore size and the transport rate are shown to be important factors that strongly influence the flow process. The nominal viscosity and the shearing stress between the nanofluid and tube wall, which characterize the ease for nanofluid transport under an external driving force, are found to be dependent on the liquid phase and solid phase properties, as !
well as liquid flow rate and nanotube size. By varying properties of liquid phase and solid phase, liquid flow rate and nanotube size, the energy absorption characteristics of nanofluidic devices might be adjusted.
Reprint Address:
Chen, X, Columbia Univ, Sch Engn & Appl Sci, New York, NY 10027 USA.
Research Institution addresses:
[Zhao, Jianbing; Culligan, Patricia J.; Chen, Xi] Columbia Univ, Sch Engn & Appl Sci, New York, NY 10027 USA; [Qiao, Yu] Univ Calif San Diego, Dept Struct Engn, La Jolla, CA 92093 USA; [Qiao, Yu] Univ Calif San Diego, Program Mat Sci & Engn, La Jolla, CA 92093 USA; [Chen, Xi] Columbia Univ, Dept Earth & Environm Engn, New York, NY 10027 USA; [Chen, Xi] Hanyang Univ, Dept Civil & Environm Engn, Seoul 133791, South Korea
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Cited Reference Count:
44
Times Cited:
0
Publisher:
AMER SCIENTIFIC PUBLISHERS; 25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USA
Subject Category:
Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
ISSN:
1546-1955
DOI:
10.1166/jctn.2010.1369
IDS Number:
574QM
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