High-power electronic systems often require temperature uniformity for optimal performance. While many advanced cooling systems, such as micro-channels, result in significant heat removal, they are also susceptible to flow mal-distribution that can impact the local temperature variation on a device. By examining the pressure drops through each flow path in a multi-channel cooling system, an analytical model is predicted for the optimal manifold shape to produce uniform velocities. This is a simple power law, whose exponent depends on the flow regime in the manifold passages. The model is validated for laminar fully developed conditions using a series of computational simulations. With the power law design, the speeds in a parallel channel design are uniformly distributed at low Reynolds numbers, with a standard deviation of less than 3% of the overall mean channel speed. At higher Reynolds numbers, some mal-distribution is observed due to developing flow conditions, but it is not as significant as with typical untapered designs.
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e-mail: stevesol@vancouver.wsu.edu
e-mail: jmainka@wsu.edu
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Manifold Design for Micro-Channel Cooling With Uniform Flow Distribution
Stephen A. Solovitz,
e-mail: stevesol@vancouver.wsu.edu
Stephen A. Solovitz
Washington State University
Vancouver 14204 NE Salmon Creek Avenue Vancouver, WA 98686
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Jeffrey Mainka
e-mail: jmainka@wsu.edu
Jeffrey Mainka
Washington State University
Vancouver 14204 NE Salmon Creek Avenue Vancouver, WA 98686
Search for other works by this author on:
Stephen A. Solovitz
Washington State University
Vancouver 14204 NE Salmon Creek Avenue Vancouver, WA 98686e-mail: stevesol@vancouver.wsu.edu
Jeffrey Mainka
Washington State University
Vancouver 14204 NE Salmon Creek Avenue Vancouver, WA 98686e-mail: jmainka@wsu.edu
J. Fluids Eng. May 2011, 133(5): 051103 (11 pages)
Published Online: June 7, 2011
Article history
Received:
December 10, 2010
Revised:
April 27, 2011
Online:
June 7, 2011
Published:
June 7, 2011
Citation
Solovitz, S. A., and Mainka, J. (June 7, 2011). "Manifold Design for Micro-Channel Cooling With Uniform Flow Distribution." ASME. J. Fluids Eng. May 2011; 133(5): 051103. https://doi.org/10.1115/1.4004089
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