Effect of liquid-solid interaction on liquid transport properties in a nanometer capillary tube

Cunkui Huang*, K. Nandakumar, Daniel Y. Kwok

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In the present paper, molecular dynamics is applied to study the effect of interaction between liquid-solid on liquid transport properties, especially a stagnant layer to a slip layer, in a circular nano tube under a constant injection flow rate boundary condition. In simulations, a full 12-6 Lennard-Jones potential, truncated at 2.2a, is used to govern the interaction between liquid-liquid and liquid-solid molecules. Six cases with different interactions (or energy scales) between liquid-solid are carried out. The non-equilibrium molecular dynamics (NEMD) simulation results show that the interaction between liquid-solid causes a wavelike density distribution in normal wall direction and the amplitude of wave is proportional to the interaction between liquid-solid; the interaction between liquid-solid dominates the motion of first liquid layer close to the solid substrate, i.e., the strong interaction between liquid-solid can result in the a stagnant layer, the weak interaction between liquid-solid produces a slip layer and the intermediate interaction between liquid-solid made a slip and sub-slip layers.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Microchannels and Minichannels, 2005
PublisherAmerican Society of Mechanical Engineers
Pages621-626
Number of pages6
ISBN (Print)0791841855, 9780791841853
DOIs
StatePublished - 2005
Externally publishedYes
Event3rd International Conference on Microchannels and Minichannels, ICMM2005 - Toronto, ON, Canada
Duration: 13 Jun 200515 Jun 2005

Publication series

NameProceedings of the 3rd International Conference on Microchannels and Minichannels, 2005
VolumePART B

Conference

Conference3rd International Conference on Microchannels and Minichannels, ICMM2005
CountryCanada
CityToronto, ON
Period13/06/0515/06/05

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