Vortex flow generator utilizing synthetic jets by diaphragm vibration

Dau, Van Thanh and Dinh, Thien Xuan and Bui, Tung Thanh and Tran, Canh-Dung (2018) Vortex flow generator utilizing synthetic jets by diaphragm vibration. International Journal of Mechanical Sciences, 142-143. pp. 432-439. ISSN 0020-7403


This paper develops a millimeter scale fully packaged device in which a vortex flow of high velocity is generated inside a chamber. Under the actuation by a lead zirconate titanate (PZT) diaphragm, a flow circulates with increasing velocity after each actuating circle to form a vortex in a cavity named as the vortex chamber. At each cycle, the vibration of the PZT diaphragm creates a small net air flow through a rectifying nozzle, generates a synthetic jet which propagates by a gradual circulation toward the vortex chamber and then backward the feedback chamber. The design of such device is firstly conducted by a numerical analysis whose results are considered as the base of our experimental set-up. A vortex flow generated in the votex chamber was observed by a high-speed camera. The present approach which was illustrated by both the simulation and experiment is potential in various applications related to the inertial sensing, fluidic amplifier and micro/nano particle trapping and mixing.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Accepted version embargoed until 1 August 2019 (12 months), in accordance with the copyright policy oft he publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 28 May 2018 02:24
Last Modified: 31 May 2018 06:07
Uncontrolled Keywords: vortex flow, synthetic jet, confined space, PZT diaphragm, OpenFOAM
Fields of Research : 09 Engineering > 0915 Interdisciplinary Engineering > 091599 Interdisciplinary Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1016/j.ijmecsci.2018.05.028
URI: http://eprints.usq.edu.au/id/eprint/34155

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