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research-article

Experimental and numerical investigation on flow characteristics of large cross-sectional ionic wind pump with multiple needles-to-mesh electrode

[+] Author and Article Information
Jian Fei Zhang

Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
zhangjf@mail.xjtu.edu.cn

Shuang Wang

Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
frederick1012@163.com

Minjun Zeng

Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
1164279134@qq.com

Zhiguo Qu

Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
zgqu@mail.xjtu.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4041391 History: Received March 09, 2018; Revised August 29, 2018

Abstract

Ionic wind pumps have attracted considerable interest because of their low energy consumption, compact structures, flexible designs, and lack of moving parts. However, large cross-sectional ionic wind pumps with large cross-sections have yet to be numerically analyzed and experimentally optimized. Accordingly, this study develops a large cross-sectional ionic wind pump with needles-to-mesh electrode, and analyzes its flow characteristics using a proposed three-dimensional simulation method validated with experimental data. To obtain a considerably high outlet average velocity, experimental studies and numerical methods are employed to optimize the pump's configuration parameters, including needle electrode configuration, needle diameter, grid size, and gap between electrodes. The breakdown voltage and highest velocity corresponding to the breakdown voltage increase with an increase in the needle tip-to-mesh gap. After parametric optimization, a maximum velocity of 2.55 m/s and a flow rate of 2,868 L/min are achieved.

Copyright (c) 2018 by ASME
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