Affiliation:
1. Department of Mechanical Engineering, University of Auckland, 20 Symonds Street, Auckland, 1010, New Zealand
Abstract
The performance of diffuser/nozzle element in valveless pumps depends upon a number of geometrical and operational parameters. In this study, the characteristics of low Reynolds number (Re < 100) flow through conical and planar diffuser/nozzle elements with varying half-angle and area ratio (AR) were investigated with simulations and experiments. The optimal half-angle, at which maximum diffuser efficiency occurs, was found to decrease with Reynolds number for both conical and planar elements. Therefore, the results provide a selection criterion for a diffuser/nozzle pair in a valveless micropump design, where no such criterion is available so far.
Publisher
World Scientific Pub Co Pte Lt
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
4 articles.
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