Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel

Tuan Norjihan Tuan Yaakub, Jumril Yunas, Burhanuddin Yeop Majlis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This report presented a 2D model for electroosmotic (EOF) aqueous fluid flow analysis along nanochannels connecting two reservoirs. The model uses the Navier-Stokes equations with electroosmotic velocity boundary condition at nanochannel wall. Zeta potential of the wall surface is varied and the influences on the velocity profile are observed for various channel height. Shear stress rate near the nanochannel entrance of different width has also been investigated. The magnitude velocity lies on the magnitude of zeta potential or the surface charge of the wall. The increased charged on the solid wall, also increased the velocity flow. The decreased height of channel helps to increase the flow velocity along it. The maximum and minimum flow velocities are recorded at channel height of 50nm and 250nm respectively with 35% difference. At all simulated channel height, the flow at the entrance of nanochannel is increased and formed a peak velocity but it will decrease and become uniform at the position far from the channel wall. The shear stress at the reservoir-nanochannel edge is increased with the decreased of channel height due to low aspect ratio of reservoir-channel dimension.

Original languageEnglish
Title of host publicationRSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479985500
DOIs
Publication statusPublished - 11 Dec 2015
Event10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015 - Kuala Terengganu, Malaysia
Duration: 19 Aug 201521 Aug 2015

Other

Other10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015
CountryMalaysia
CityKuala Terengganu
Period19/8/1521/8/15

Fingerprint

single-phase flow
flow characteristics
Zeta potential
Flow velocity
Shear stress
flow velocity
entrances
shear stress
Surface charge
Navier Stokes equations
Flow of fluids
Aspect ratio
low aspect ratio
Boundary conditions
Navier-Stokes equation
fluid flow
velocity distribution
boundary conditions

Keywords

  • electroosmotic (EOF)
  • nanochannel
  • shear stress
  • velocify profile
  • zeta potential

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Yaakub, T. N. T., Yunas, J., & Yeop Majlis, B. (2015). Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel. In RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings [7354972] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RSM.2015.7354972

Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel. / Yaakub, Tuan Norjihan Tuan; Yunas, Jumril; Yeop Majlis, Burhanuddin.

RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7354972.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yaakub, TNT, Yunas, J & Yeop Majlis, B 2015, Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel. in RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings., 7354972, Institute of Electrical and Electronics Engineers Inc., 10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015, Kuala Terengganu, Malaysia, 19/8/15. https://doi.org/10.1109/RSM.2015.7354972
Yaakub TNT, Yunas J, Yeop Majlis B. Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel. In RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. 7354972 https://doi.org/10.1109/RSM.2015.7354972
Yaakub, Tuan Norjihan Tuan ; Yunas, Jumril ; Yeop Majlis, Burhanuddin. / Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel. RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015.
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