多孔式合成射流压电风扇仿真分析与试验

doi:10.3969/j.issn.1004-132X.2023.16.006

中国机械工程 ›› 2023, Vol. 34 ›› Issue (16): 1929-1935.DOI: 10.3969/j.issn.1004-132X.2023.16.006

多孔式合成射流压电风扇仿真分析与试验

王建涛;高铭泽;祝健;王启智;李昊

燕山大学车辆与能源学院，秦皇岛，066004

出版日期:2023-08-25 发布日期:2023-09-15
通讯作者: 李昊（通信作者），男，1977年生，教授。研究方向为流体传动及控制技术。E-mail:lihao@ysu.edu.cn。
作者简介:作者简介：王建涛，男，1988年生，讲师。研究方向为压电驱动及控制技术、精密机械与微小机械。E-mail:wjt@ysu.edu.cn。
基金资助:
河北省自然科学基金（E2020203070）；河北省高等学校科学技术研究项目（QN2020238）

Simulation and Investigation on a Synthetic Jet Piezoelectric Fan with Multiple Jet Holes

WANG Jiantao;GAO Mingze;ZHU Jian;WANG Qizhi;LI Hao

School of Vehicles and Energy,Yanshan University,Qinhuangdao,Hebei，066004

Online:2023-08-25 Published:2023-09-15

摘要/Abstract

摘要： 为了提高压电气体驱动器的气体驱动能力，设计了一种利用压电换能器激励空气质点振荡并形成气体射流的多孔压电风扇，并从仿真与试验两个方面对多孔压电风扇的工作特性进行了研究。通过FLUENT流场仿真分析得到了不同射流孔布置密度下多孔压电风扇的气体驱动规律，采用多个射流孔可以提高压电换能器的能量利用效率和改善多孔压电风扇的气体驱动性能。设计制作了样机并进行试验测试。试验结果表明，将射流孔布置在中心时单孔压电风扇的气体驱动性能最佳；采用多个射流孔可以提高压电换能器的能量利用效率，且存在最佳的射流孔布置密度；当驱动电压Vpp为90 V时，试验测得89孔多孔压电风扇驱动气体流速达到4.7 m/s。

关键词: 压电换能器, 聚能式超声, 合成射流, 风扇

Abstract: In order to improve the gas driving ability of piezoelectric gas drivers, a piezoelectric fan with multiple jet holes was proposed, which used piezoelectric transducer to excite gas particle oscillation and to form the gas jet. Working characteristics were studied on the aspects of simulation and investigation. The gas driving law of piezoelectric fans with different density of jet holes was obtained through FLUENT simulation analysis. Multiple jet holes may improve the energy utilization efficiency of piezoelectric transducer, and further improve the gas driving performance of piezoelectric fans. Experimental results on the prototypes show that the piezoelectric fan with single jet hole which is set in the center has better gas driving performance; the energy utilization efficiency of piezoelectric transducer may be improved by using multiple jet holes, and there is an optimal jet hole density; when the driving voltage Vpp is 90 V, the gas velocity of piezoelectric fan with 89 jet holes reaches 4.7 m/s.

Key words: piezoelectric transducer, concentrated ultrasonic, synthetic jet, fan

中图分类号:

TH321

王建涛, 高铭泽, 祝健, 王启智, 李昊. 多孔式合成射流压电风扇仿真分析与试验[J]. 中国机械工程, 2023, 34(16): 1929-1935.

WANG Jiantao, GAO Mingze, ZHU Jian, WANG Qizhi, LI Hao. Simulation and Investigation on a Synthetic Jet Piezoelectric Fan with Multiple Jet Holes[J]. China Mechanical Engineering, 2023, 34(16): 1929-1935.

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http://www.cmemo.org.cn/CN/Y2023/V34/I16/1929

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多孔式合成射流压电风扇仿真分析与试验

Simulation and Investigation on a Synthetic Jet Piezoelectric Fan with Multiple Jet Holes

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