The initial flow dynamics of light atoms through carbon nanotubes

James Cannon, Daejoong Kim, Ortwin Hess

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Carbon nanotubes are becoming increasingly viable as membranes for application in a wide variety of nano-fluidic applications, such as nano-scale nozzles. For potential applications that utilize switching on and off of flow through nanotube nozzles, it is important to understand the initial flow dynamics. Furthermore, when the nanotube interacts strongly with the fluid, the flow may be very different from conventional simulations, which consider atoms (such as argon, for example) that interact only weakly with the nanotube. Therefore, to better understand such flows and explore the potential manipulation of flow that can be achieved, we consider the initial flow dynamics of a light fluid through carbon nanotube nozzles, using non-equilibrium molecular dynamics simulations. Our studies show that if the conditions are controlled carefully, unusual phenomena can be generated, such as pulsed flow and very nonlinear increases in flow rate with nanotube diameter. We detail the physical reasons for such phenomena and describe how the pulsation can be controlled using temperature.

Original languageEnglish
Article number025507
JournalFluid Dynamics Research
Volume43
Issue number2
DOIs
Publication statusPublished - Apr 1 2011
Externally publishedYes

Fingerprint

Carbon Nanotubes
Nanotubes
Carbon nanotubes
carbon nanotubes
Nozzles
Atoms
nanotubes
atoms
nozzles
Pulsatile flow
Fluids
Argon
Fluidics
Molecular dynamics
Flow rate
Membranes
fluids
fluidics
Computer simulation
manipulators

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Cite this

The initial flow dynamics of light atoms through carbon nanotubes. / Cannon, James; Kim, Daejoong; Hess, Ortwin.

In: Fluid Dynamics Research, Vol. 43, No. 2, 025507, 01.04.2011.

Research output: Contribution to journalArticle

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