NDLI: Numerical Studies of Curved-walled Micro Nozzle/Diffuser

Content Provider	IEEE Xplore Digital Library
Author	Yu-Tang Chen Chin-Chun Hsu Ming-Cheng Chang Shung-Wen Kang
Copyright Year	2006
Description	Author affiliation: Dept. of Mech. Eng., De Lin Inst. of Technol., Taipei (Yu-Tang Chen; Chin-Chun Hsu; Ming-Cheng Chang; Shung-Wen Kang)
Abstract	In this study, commercially available software CFD was adopted for analyzing the performance of straight-walled and curved-walled micro nozzle/diffuser. Such nozzle/diffuser was used in valve-less micro-pumps. This model tested different types of nozzle/diffuser and the results showed that the pressure loss coefficient for nozzle/diffuser decreases with the increase of Reynolds number. At the same Reynolds number, the pressure loss coefficient for nozzle is higher than that of the diffuser. At a given volumetric flow rate, the pressure loss coefficient and ratio of pressure loss coefficient for curved-walled nozzle/diffuser are slightly higher than that of the straight-walled nozzle/diffuser. In this study, the numerical data was found good agreement with previous analytic solution and experimental results.
Starting Page	841
Ending Page	845
File Size	4295082
Page Count	5
File Format	PDF
ISBN	1424401399
DOI	10.1109/NEMS.2006.334908
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Differential equations Pumps Performance analysis Performance loss Systems engineering and theory Software performance Computational fluid dynamics Micropumps Testing Fabrication Reynolds number Fluent Nozzle Diffuser Pressure loss coefficient
Content Type	Text
Resource Type	Article

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