Effects of repeating microstructures on pressure drop in rectangular minichannels

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Title: Effects of repeating microstructures on pressure drop in rectangular minichannels
Author: Schmitt, Derek; Kandlikar, Satish
Abstract: A literature review in laminar incompressible flow in microchannels has shown both early and late transitions from laminar to turbulent flow as well as no deviation from the conventional flow transition of Re=2300. In the present work, air and water flow through rectangular channels with hydraulic diameters ranging from 325μm to 1819μm. Smooth surface conditions are tested to validate the test section, while a repeating roughness is used to show the effects of surface roughness and its orientation on flow characteristics in minichannels. Testing has shown that smooth channels show no deviation, while artificially roughened channels show considerable deviation from the macroscale flow transition of Re=2300.
Description: Proceedings of the third international conference on microchannels and minichannels June 13-15, 2005. The complete proceedings can be obtained at www.asme.org .RIT community members may access full-text via RIT Libraries licensed databases: http://library.rit.edu/databases/
Record URI: http://hdl.handle.net/1850/7411
Date: 2005-06

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