Abstract

Transient analysis of electroosmotic flow in a nanodiameter channel is presented. The time for flow to reach steady state in a nano-diameter channel for various Debye lengths is investigated by solving the Navier-Stokes equations in the presence of electrical forces. The results indicate that the time for flow to reach steady state depends on the interaction of Debye layers. Preliminary results on molecular dynamics simulation of electroosmotic flow are also presented. A comparison between continuum theory results and molecular dynamics simulation results indicates that for a 5 nm channel, continuum theory based on the Poisson-Boltzmann equation can overestimate the ion density near the channel wall, but agrees fairly well in the rest of the channel region. The velocity profile obtained from the continuum model agrees qualitatively with the molecular dynamics simulation result.

Original languageEnglish (US)
Title of host publication2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002
EditorsM. Laudon, B. Romanowicz
Pages89-92
Number of pages4
StatePublished - 2002
Event2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002 - San Juan, Puerto Rico
Duration: Apr 21 2002Apr 25 2002

Other

Other2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002
Country/TerritoryPuerto Rico
CitySan Juan
Period4/21/024/25/02

Keywords

  • Electroosmotic flow
  • Molecular dynamics simulation
  • Nano-channel
  • Transient analysis

ASJC Scopus subject areas

  • Engineering(all)

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