Al-Asadi, MT, Alkasmoul, FS and Wilson, MCT (2016) Heat transfer enhancement in a micro-channel cooling system using cylindrical vortex generators. International Communications in Heat and Mass Transfer, 74. pp. 40-47. ISSN 0735-1933
Abstract
Three-dimensional conjugate heat transfer under laminar flow conditions within a micro-channel is analysed numerically to explore the impact of a new design of vortex generator positioned at intervals along the base of the channel. The vortex generators are cylindrical with quarter-circle and half-circle cross sections, with variants spanning the whole width of the channel or parts of the channel. Micro-channels with Reynolds number ranging from 100 to 2300 are subjected to a uniform heat flux relevant to microelectronics cooling. To ensure the accuracy of the results, validations against previous microchannel studies were conducted and found to be in good agreement, before the new vortex generators with radii up to 400 µm were analysed. Using a thermal-hydraulic performance parameter expressed in a new way, the VGs described here are shown to offer significant potential in combatting the challenges of heat transfer in the technological drive toward lower weight/smaller volume electrical and electronic devices.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, Elsevier. This is an author produced version of a paper published in International Communications in Heat and Mass Transfer. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | vortex generators; micro-channel; hydraulic thermal performance; micro scale cooling system |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Apr 2016 13:30 |
Last Modified: | 18 Jul 2017 12:16 |
Published Version: | http://dx.doi.org/10.1016/j.icheatmasstransfer.201... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.icheatmasstransfer.2016.03.002 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96797 |