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Gas flows through shallow T-junctions and parallel microchannel networks

Gat, A. D. and Frankel, I. and Weihs, D. (2010) Gas flows through shallow T-junctions and parallel microchannel networks. Physics of Fluids, 22 (9). Art. No. 092001. ISSN 1070-6631.

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We apply a recent extension of the Hele-Shaw scheme to analyze steady compressible viscous flows through micro T-junctions. The linearity of the problem in terms of an appropriately defined quadratic form of the pressure facilitates the definition of the viscous resistance of the configuration, relating the gas mass-flow rate to entrance and exit conditions. Furthermore, under rather mild restrictions, the performance of complex microchannel networks may be estimated through superposition of the contributions of multiple basic junction elements. This procedure is applied to an optimization model problem of a parallel microchannel network. The analysis and results are readily adaptable to incompressible flows.

Item Type:Article
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Additional Information:© 2010 American Institute of Physics. Received 19 February 2010; accepted 28 July 2010; published online 30 September 2010.
Subject Keywords:compressible flow, flow simulation, microchannel flow, numerical analysis, viscosity
Issue or Number:9
Classification Code:PACS: 47.40.-x; 47.60.Dx; 07.10.Cm; 47.11.-j; 02.60.Cb
Record Number:CaltechAUTHORS:20101104-085105189
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20660
Deposited By: Ruth Sustaita
Deposited On:04 Nov 2010 16:25
Last Modified:03 Oct 2019 02:13

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