Gas or liquid flow in multiple, parallel micro-channels is of interest for Micro-Electro-Mechanical Systems (MEMS) cooling applications. The published data for friction in 10-to-400μm hydraulic diameter, single micro-channels show good agreement with the conventional equations in the laminar and turbulent regimes. However, investigators of flow in multiple, parallel micro-channels in the same range of channel sizes report significantly different results. They report significant disagreement with the conventional equations and argue that transition occurs at Reynolds numbers as small as 200, dependent on the channel shape. This paper proposes that the apparent discrepancies of friction in multiple micro-channels can be attributed to flow mal-distribution. Flow mal-distribution is expected in multi-channels, because of manufacturing tolerances and poor manifold design. It can be minimized by proper header design and better manufacturing tolerances.
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ASME 2003 International Electronic Packaging Technical Conference and Exhibition
July 6–11, 2003
Maui, Hawaii, USA
Conference Sponsors:
- Electronic and Photonic Packaging Division
ISBN:
0-7918-3690-8
PROCEEDINGS PAPER
Effect of Manifold Design on Flow Distribution in Parallel Micro-Channels Available to Purchase
Ralph L. Webb
Ralph L. Webb
Pennsylvania State University, University Park, PA
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Ralph L. Webb
Pennsylvania State University, University Park, PA
Paper No:
IPACK2003-35251, pp. 527-535; 9 pages
Published Online:
January 5, 2009
Citation
Webb, RL. "Effect of Manifold Design on Flow Distribution in Parallel Micro-Channels." Proceedings of the ASME 2003 International Electronic Packaging Technical Conference and Exhibition. 2003 International Electronic Packaging Technical Conference and Exhibition, Volume 2. Maui, Hawaii, USA. July 6–11, 2003. pp. 527-535. ASME. https://doi.org/10.1115/IPACK2003-35251
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