A numerical study of the nozzle/diffuser micro-pump

Kai Shing Yang*, Ing Young Chen, Kuo Hsiang Chien, Chi-Chuan Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

This study numerically investigated the performance of micro nozzle/diffuser pump subject to the influence of frequency, opening angle, and amplitude. It is found that the net flowrate of a micro-pump increased with pumping frequency and opening angle. However, a level off phenomenon of the net flowrate vs. amplitude is seen at an amplitude nearby 150∼200 μm and at an opening angle above 10 degree. This phenomenon is associated with two factors that compensate with each other. One is the free jet flow from the outlet that overturns and blocks the flow from the inlet. The other is the reduction of the strength of jet flow at a larger amplitude owing to effective increase of cross sectional area.

Original languageEnglish
Title of host publicationProceedings - 2004 International Conference on MEMS, NANO and Smart Systems, ICMENS 2004
EditorsW. Badawy, W. Moussa
Pages104-109
Number of pages6
DOIs
StatePublished - 1 Dec 2004
EventProceedings - 2004 International Conference on MEMS, NANO and Smart Systems, ICMENS 2004 - Banff, Alta., Canada
Duration: 25 Aug 200427 Aug 2004

Publication series

NameProceedings - 2004 International Conference on MEMS, NANO and Smart Systems, ICMENS 2004

Conference

ConferenceProceedings - 2004 International Conference on MEMS, NANO and Smart Systems, ICMENS 2004
CountryCanada
CityBanff, Alta.
Period25/08/0427/08/04

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    Yang, K. S., Chen, I. Y., Chien, K. H., & Wang, C-C. (2004). A numerical study of the nozzle/diffuser micro-pump. In W. Badawy, & W. Moussa (Eds.), Proceedings - 2004 International Conference on MEMS, NANO and Smart Systems, ICMENS 2004 (pp. 104-109). (Proceedings - 2004 International Conference on MEMS, NANO and Smart Systems, ICMENS 2004). https://doi.org/10.1109/ICMENS.2004.1508928