Jet flow in a circulatory miniaturized system using ion wind

Dinh, Thien Xuan and Dang, Lam Bao and Tran, Canh-Dung and Bui, Tung Thanh and Pham, Phuc Hong and Dau, Van Thanh (2017) Jet flow in a circulatory miniaturized system using ion wind. Mechatronics, 47. pp. 126-133. ISSN 0957-4158


This paper applies our recent approach to generate a circulatory jet flow within a confined space using ionic
wind by the corona discharge. A millimetre-scaled prototype with bipolar discharge configuration, which consists of two pin electrodes, nozzle, working chamber, two circulating channels and three hotwires, was designed, manufactured and investigated. A dielectric barrier of 1.0mm thickness, installed between the parallel electrodes of opposite polarity, is utilized in order to possibly minimize the inter-electrode distance, provide a smooth current-voltage discharge characteristic and prevent electrical spark. The experimental results demonstrate that the jet flow circulates inside the device with a average velocity of 0.7 m/s. The characteristics of flow by experiment are in reasonable agreement with the numerical analysis using the finite-volume method. The device specifications were investigated with several parameters including the discharge voltage on the electrode and the heating power on hotwires. In addition, the dependence of packaging conditions on the discharge process and the effect of alternating current on the generation of ion wind are also presented. The device has low power consumption of 33 mW, and great versatility for applications in fluidic inertial sensors, fluidic amplifiers or gas mixing.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Paper, in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 08 Nov 2017 05:18
Last Modified: 17 Jul 2018 01:27
Uncontrolled Keywords: circulatory jet flow, ionic wind, neutralised discharge, dielectric barrier
Fields of Research : 09 Engineering > 0915 Interdisciplinary Engineering > 091599 Interdisciplinary Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1016/j.mechatronics.2017.09.007

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