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“School of Nano-Sciences”

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Paper   IPM / Nano-Sciences / 14545
School of Nano Science
  Title:   Temperature gradient-induced fluid pumping inside a single-wall carbon nanotube: A non-equilibrium molecular dynamics study
  Author(s): 
1 . Fahim Faraji
2 . Ali Rajabpour
  Status:   Published
  Journal: Phys. Fluids
  No.:  9
  Vol.:  28
  Year:  2016
  Pages:   092004(1-12)
  Publisher(s):   AIP Publishing
  Supported by:  IPM
  Abstract:
In this paper we investigate the fluid transport inside a single-wall carbon nanotube induced by a temperature gradient along the tube length, focusing on the effect of fluid-wall interaction strength. It is found that the fluid moves from the hot side of the nanotube towards the cold side. By increasing the fluid-wall interaction strength, the fluid volumetric flux assumes a maximum, increases, and then decreases. Fluid transport is pressure-driven in weak interactions; in contrast, in strong interactions, the fluid is broken into two parts in the radial direction. Fluid transport in the central regions of the tube is pressure-driven, while it is surface-driven in the areas close to the wall.

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