Particle Transport in Microchannels

Y. F. Yap, J. C. Chai, T. N. Wong, N. T. Nguyen, K. C. Toh, H. Y. Zhang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Particle transport in microchannel is presented. This article focuses on situations in which the sizes of the particles are comparable to the sizes of the channels. These solid bodies are sufficiently large that momentum is exchanged between the bodies and the flowing fluid. As a result, the solid bodies affect the fluid flow significantly, and vice versa, resulting in a transient process in which the motions of the solid bodies and the flow field are strongly coupled. The flow field and the particulate flow must then be solved simultaneously. The solid bodies are modeled as a fluid constraint to move with rigid body motion. The solid-fluid interface is described using a distance function. For demonstration purposes, the finite-volume method is used to solve the resulting set of governing equations. The present approach is validated against (1) flow around stationary, (2) flow around forced rotating, (3) flow around freely rotating cylinders, and (4) sedimentation of a circular cylinder under gravity. Finally, the motion of particles carried by an incompressible fluid in a microchannel system is studied.

Original languageEnglish
Pages (from-to)141-157
Number of pages17
JournalNumerical Heat Transfer, Part B: Fundamentals
Volume51
Issue number2
Early online date24 Feb 2007
DOIs
Publication statusPublished - 1 May 2007
Externally publishedYes

Fingerprint

Particle Transport
Microchannel
microchannels
Microchannels
Fluids
Fluid
Flow Field
fluids
Flow fields
Rotating
flow distribution
rotating cylinders
Rigid Body Motion
Motion
incompressible fluids
finite volume method
Sedimentation
Finite volume method
circular cylinders
Circular Cylinder

Cite this

Yap, Y. F., Chai, J. C., Wong, T. N., Nguyen, N. T., Toh, K. C., & Zhang, H. Y. (2007). Particle Transport in Microchannels. Numerical Heat Transfer, Part B: Fundamentals, 51(2), 141-157. https://doi.org/10.1080/10407790600878585
Yap, Y. F. ; Chai, J. C. ; Wong, T. N. ; Nguyen, N. T. ; Toh, K. C. ; Zhang, H. Y. / Particle Transport in Microchannels. In: Numerical Heat Transfer, Part B: Fundamentals. 2007 ; Vol. 51, No. 2. pp. 141-157.
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Yap, YF, Chai, JC, Wong, TN, Nguyen, NT, Toh, KC & Zhang, HY 2007, 'Particle Transport in Microchannels', Numerical Heat Transfer, Part B: Fundamentals, vol. 51, no. 2, pp. 141-157. https://doi.org/10.1080/10407790600878585

Particle Transport in Microchannels. / Yap, Y. F.; Chai, J. C.; Wong, T. N.; Nguyen, N. T.; Toh, K. C.; Zhang, H. Y.

In: Numerical Heat Transfer, Part B: Fundamentals, Vol. 51, No. 2, 01.05.2007, p. 141-157.

Research output: Contribution to journalArticle

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