Laminar fully developed flow in streamwise-periodic microchannels of rectangular cross-section has been studied in this work. Based on the lubrication approximation, an analytical approach is proposed for the frictional flow resistance. Using the analytical model developed for straight channels of arbitrary cross-section, compact models are developed for linear and sinusoidal wall shapes. The models are then examined with two asymptotic two-dimensional flows of: (a) very narrow and (b) very tall channels and compared with the available experimental and numerical data in the literature. An independent numerical study is also performed to evaluate the proposed models for the three-dimensional flow case. Effects of the channel aspect ratio and deviation factor on the pressure drop are also investigated. Results for the three-simensional flow show that the proposed compact models capture the trend of the numerical data with good accuracy.
Skip Nav Destination
ASME 2009 Fluids Engineering Division Summer Meeting
August 2–6, 2009
Vail, Colorado, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4372-7
PROCEEDINGS PAPER
Flow in Slowly Varying Microchannels of Rectangular Cross-Section
Mohsen Akbari,
Mohsen Akbari
Simon Fraser University, Surrey, BC, Canada
Search for other works by this author on:
David Sinton,
David Sinton
University of Victoria, Victoria, BC, Canada
Search for other works by this author on:
Majid Bahrami
Majid Bahrami
Simon Fraser University, Surrey, BC, Canada
Search for other works by this author on:
Mohsen Akbari
Simon Fraser University, Surrey, BC, Canada
David Sinton
University of Victoria, Victoria, BC, Canada
Majid Bahrami
Simon Fraser University, Surrey, BC, Canada
Paper No:
FEDSM2009-78183, pp. 1335-1346; 12 pages
Published Online:
July 26, 2010
Citation
Akbari, M, Sinton, D, & Bahrami, M. "Flow in Slowly Varying Microchannels of Rectangular Cross-Section." Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A, B and C. Vail, Colorado, USA. August 2–6, 2009. pp. 1335-1346. ASME. https://doi.org/10.1115/FEDSM2009-78183
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Three-Dimensional Flow of a Newtonian Liquid Through an Annular Space with Axially Varying Eccentricity
J. Fluids Eng (March,2006)
The Dynamic Compressive Response of Open-Cell Foam Impregnated With a Newtonian Fluid
J. Appl. Mech (July,2008)
Convective Heat Transfer in Microchannels of Noncircular Cross Sections: An Analytical Approach
J. Heat Transfer (September,2012)
Related Chapters
Experiment Investigation of Flow Boiling Process Including Cavitation in Micro-Channel
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Hydrodynamic Lubrication
Design of Mechanical Bearings in Cardiac Assist Devices
Thermocavitation in a Microchannel with a Low Power Light Source
Proceedings of the 10th International Symposium on Cavitation (CAV2018)