New pumping mechanism by surface waves in a microchannel

Tzong Shyng Leu, Homg Jiann Song

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This paper investigates new pumping phenomena induced by surface waves in a microchannel. Acoustic streaming is known as fluid motion due to high intensity sound. This phenomenon usually occurs near an oscillating surface of a body in a sound field. In this study, a new acoustic pumping mechanism, different from surface acoustic streaming phenomenon, is found. According to current parameters, the new pumping mechanism can generate net flow rate about 10 times higher than the surface acoustic streaming pump. We investigate this new pumping mechanism numerically. The new pumping mechanism is further identified as results of pressure wave resonant behaviors due to finite length of microchannel. The length scale related to pressure wave resonant behaviors is found to be δL=L/π, where L is channel length. The effects of parameters including frequencies, channel heights, channel lengths and wave lengths on the velocity profile and net flow rate are also investigated..

原文English
主出版物標題4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2009
頁面747-750
頁數4
DOIs
出版狀態Published - 2009
事件4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2009 - Shenzhen, China
持續時間: 2009 1月 52009 1月 8

出版系列

名字4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2009

Other

Other4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2009
國家/地區China
城市Shenzhen
期間09-01-0509-01-08

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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