Effects of repeating microstructures on pressure drop in rectangular minichannels
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.
Collections
The following license files are associated with this item: