Quantitative Analyses of Electrohydrodynamically Induced Phenomena in Gas-Liquid Two-Phase Fluid

气液两相流体中电流体动力学诱发现象的定量分析

• 批准号: 15560154
• 负责人: OHYAMA Ryu-ichiro
• 金额: $ 1.22万
• 依托单位: Tokai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560154/
• 关键词: Electrohydrodynamics; Gas-liquid two-phase flow field; Ionic flow field; Particle image velocimetry; Phosphorescence; Non-dimensional analysis; EHD pump; Fluid flow visualization; Electrohydrodynamics; 気液2相流体; Molecular Tagging Velocimetry; 無次元

In this work, quantitative analyses of electrohydrodynamically induced gas-liquid two-phase fluid flow phenomena have been conducted. The fluid flow velocity was obtained from a particle image velocimetry using a phosphorescence trace. In order to realize the analysis method for the gas-liquid two-phase electrohydrodynamic phenomenon, some non-dimensional parameters derived from the experimental results with fluid flow velocity were evaluated in detail. For requirements of progressive investigation in multi-phase fluid flow understanding, this work presented as following research results.1. Development of a molecular tagging velocimetry for the gas-liquid two-phase flow measurements.An application of molecular tagging procedure to the particle image velocimetry was conducted to prevent the disturbances due to the charged tracer particles. The molecular tagging procedure was developed from an image capture device with a time-resolution rate of 10 nanosecond and a biacetyl molecular tracer with visible phosphorescence time continuing a few millisecond order. It was enabled us to measure the electrohydrodynamically induced gas-liquid two-phase flow velocity.2. Analyses of conductive and dielectric forces in gas-liquid electrohydrodynamicsFrom the above experimental results, conductive and dielectric forces were analyzed in order to find out the non-dimensional parameters of the presented gas-liquid electrohydrodynamics. It was enabled us to quantitatively analyze the electrohydrodynamically induced multi-phase flow phenomena.3. Application of this phenomena to liquid pumpA new type of non-intrusive two-phase electrohydrodynamic pump was investigated. The pumping performance was experimentally and analytically evaluated by the fluid flow measurements and the non-dimensional parameters. An electrohydrodynamical effect on the pumping performance was quantitatively characterized.

本文对电流体动力诱导的气液两相流体流动现象进行了定量分析。流体流动速度是由粒子图像测速法使用磷光痕迹获得的。为了实现气液两相电流体动力现象的分析方法，对实验结果得出的一些无量纲参数与流体流速进行了详细的计算。根据对多相流体流动认识的深入研究需要，本文的研究成果如下：气液两相流分子标记测速仪的研制。为了防止带电示踪粒子的干扰，将分子标记技术应用到粒子图像测速中。分子标记程序由时间分辨率为10纳秒的图像捕获装置和可见磷光时间持续数毫秒的双乙酰分子示踪剂开发而成。它使我们能够测量电流体动力诱导的气液两相流速度。气液电流体动力学中导电和介电力的分析根据上述实验结果，对导电和介电力进行了分析，以找出所提出的气液电流体动力学的无量纲参数。这使我们能够定量地分析电流体动力诱导的多相流现象。研究了一种新型非侵入式两相电液动力泵。通过流体流量测量和无量纲参数对泵送性能进行了实验和分析评价。定量表征了电流体动力对泵送性能的影响。

项目成果

Image Analysis of Gas-Phase EHD Flow Field for Needle-Plane Electrode System

针面电极系统气相EHD流场图像分析

• 发表时间: 2003
• 期刊: Proc.of IEEE 2003 Annual Conference on Electrical Insulation and Dielectric Phenomena
• 作者: 大山 龍一郎;R.Ohyama;R.Ohyama;R.Ohyama;R.Ohyama;R.Ohyama
• 通讯作者: R.Ohyama

直流コロナ放電により誘起するシリコーンオイル煙霧雰囲気のEHD現象の可視化画像解析

直流电晕放电硅油烟气氛中EHD现象的可视化图像分析

• 发表时间: 2004
• 期刊: 電気学会論文誌FM 124・11
• 作者: 大山 龍一郎

Experimental Visualization of Corona Discharge Progress for Gas-Liquid Two-Phase EHD Flow Phenomenon

气液两相 EHD 流动现象的电晕放电过程的实验可视化

• 发表时间: 2004
• 期刊: Proc.of 4^<th> S.F.E.Int.Conference I
• 作者: 大山 龍一郎;R.Ohyama;R.Ohyama;R.Ohyama
• 通讯作者: R.Ohyama

ビアセチル霧化トレーサを用いたレーザー誘起燐光による針-平板電極系イオン風の可視化に関する試み

使用联乙酰雾化示踪剂利用激光诱导磷光对针扁电极系统中离子风进行可视化的尝试

• 发表时间: 2005
• 期刊: 可視化情報 25・Suppl.2
• 作者: 尾形慎太郎;和田健太郎;加藤和江;佐藤光太郎;横田和彦;伊藤基之;大山 龍一郎
• 通讯作者: 大山 龍一郎

R.Ohyama: "Current Density Distribution on Gas-Liquid Two-Phase Fluid Flow in an Air-Wave Type EHD Pump"IEEE 2003 Annual Conference on Electrical Insulation and Dielectric Phenomena. I. 390-693 (2003)

R.Ohyama：“空气波型 EHD 泵中气液两相流体流动的电流密度分布”IEEE 2003 年电气绝缘和介电现象年会。