Ionic wind characteristics of an EHD micro gas pump constructed with needle-ring electrode system
Ionic wind characteristics of an EHD micro gas pump constructed with needle-ring electrode system
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DOI：
10.1109/ceidp.2011.6232638
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发表时间：
2011-10
期刊：
影响因子：
--
通讯作者：
S. Ohyama;R. Ohyama
中科院分区：
文献类型：
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作者：
S. Ohyama;R. Ohyama
为了将离子风应用于无机械部件的流体流动操作，研制了一种针-环电极系统的EHD微型气泵。实验EHD泵由同轴的针电极和环电极组成。针电极用作常规放电电极，而环电极接地。在交流电晕放电条件下，电极间的离子风产生作为一个小型的气体射流源。在这项工作中，离子风的室内大气条件进行了评估。流体流动的可视化进行了激光片监测方法和定量流速测量是一个粒子图像测速（PIV）与高速数码相机。分析了离子风速随电晕放电电流和放电功率的变化规律。本文提出了一种实验方法来研究离子风速对所施加交流电压频率的依赖性。除此之外，还观察了离子风产生过程中电晕放电的几种电学条件。
An EHD micro gas pump using a needle-ring electrode system was constructed for an application of ionic wind to fluid flow operations without mechanical parts. The experimental EHD pump was consisted of a needle electrode and ring electrode which are on the same axis. The needle electrode was used as a conventional discharge electrode and the ring electrode connected to ground. Under AC corona discharge conditions, the ionic wind generation between electrodes was operated as a small-sized gas jet source. In this work, the ionic wind was evaluated for room atmosphere condition. The fluid flow visualization was conducted by a laser sheet monitoring method and the quantitative flow velocity measurement was a particle image velocimetry (PIV) with a high-speed digital camera. The characteristics of ionic wind velocity were analyzed as a function of the corona discharge current and the discharge power. This paper presents an experimental approach to investigate the dependency of ionic wind velocity towards the frequency of applied AC voltage. Beside that's, several electrical conditions of corona discharges during generation of the ionic wind are observed.