Effect of wall roughness on fluid transport resistance in nanopores
- Title
- Effect of wall roughness on fluid transport resistance in nanopores
- Author
- 박대효
- Issue Date
- 2011-10
- Publisher
- AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
- Citation
- JOURNAL OF CHEMICAL PHYSICS, Vol.135, No.14 [2011]
- Abstract
- Using non-equilibrium molecular dynamics simulations, we investigate the effect of wall roughness on the transport resistance of water molecules inside modified carbon nanotubes. The effective shear stress, which characterizes the strong interaction between liquid molecules and solid wall, is a quantity that dominates the nanofluidic transport resistance. Both the effective shear stress and nominal viscosity arise with the increase of the amplitude or the decrease of the wavelength of roughness. The effect of roughness is also relatively more prominent in smaller nanotubes. The molecular mechanism is elucidated through the study of the radial density profile, hydrogen bonding, and velocity field of the confined water molecules. (C) 2011 American Institute of Physics. [doi:10.1063/1.3651158]
- URI
- https://aip.scitation.org/doi/10.1063/1.3651158http://hdl.handle.net/20.500.11754/67603
- ISSN
- 0021-9606
- DOI
- 10.1063/1.3651158
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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