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Visualization of Gas-Liquid Two-Phase Fields with weakly ionized plasma and Its evaluation of Electrohydrodynamic effects

Research Project

Project/Area Number 15K05808
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Fluid engineering
Research InstitutionTokai University

Principal Investigator

Ryu-ichiro Ohyama  東海大学, 工学部, 教授 (40233291)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords電気流体力学現象 / Electrohydrodynamics / 気液2相流体 / 弱電離プラズマ / イオン流 / 数値解析 / モデリング / PIV / MTV / プラズマ診断
Outline of Final Research Achievements

The purpose of this research was to consider visualization of gas-liquid two-phase flow fields accompanied by weakly ionized plasma flow, and its evaluation for EHD effects based on vapor-phase radical particles and the liquid-phase interface reaction. The experimental models were EHD flow fields where the weakly ionized plasma flow progresses to the interface of gas and liquid. For the results on visualization of EHD flow fields, the dielectric characteristics and electrical conduction characteristics in the gaseous phase and a liquid phase were evaluated. It was quantitatively urged for the conductivity of a liquid to have influence on the EHD phenomena. For the EHD effects of vapor-phase radical particles on liquid-phase interface reaction, the investigation into ionization action was conducted using the relative humidity of the mist as a parameter. These experimental results derived the knowledge that could consider effect of the ion polarity concretely.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2016 2015

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] A Study on the Humidity Effect of AC Corona Discharge for a Thin-Wire Electrode Arrangement2016

    • Author(s)
      Try SOBAN and Ryu-ichiro OHYAMA
    • Journal Title

      Proceedings of The School of Engineering, Tokai University

      Volume: 41 Pages: 1-7

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] MEASUREMENT OF TRITIUM WITH PLASTIC SCINTILATOR SURFACE IMPROVEMENT WITH PLASMA TREATMENT2015

    • Author(s)
      Yuri Yoshihara, Etsuko Furuta, Ryu-ichiro Ohyama, Shigeaki Yokota, Yuka Kato, Tomoyuki Yoshimura, and Kiyoshi Ogiwara
    • Journal Title

      FUSION SCIENCE AND TECHNOLOGY- American Nuclear Society

      Volume: Vol.67 Issue: 3 Pages: 654-657

    • DOI

      10.13182/fst14-t103

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] No-waste-measurement Method with a LSC: Effects of Surface Treatment for Plastic Scintillator2015

    • Author(s)
      古田悦子、岩崎紀子、大山龍一郎、横田繁昭、森一高、加藤結花、荻原清
    • Journal Title

      Japanese Journal of Health Physics

      Volume: 50 Issue: 2 Pages: 98-98

    • DOI

      10.5453/jhps.50.98

    • NAID

      130005118599

    • ISSN
      0367-6110, 1884-7560
    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] DBDによる大気圧Heプラズマバレットの電荷密度測定に関する実験2018

    • Author(s)
      吉野貴文、大山龍一郎
    • Organizer
      平成30年電気学会全国大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Observation of Partial Discharges in a Cylindrical Cavity with and without Carbon2017

    • Author(s)
      Worawat Liawthanyart, 津田真理子, 山賀幹大 and Ryu-ichiro Ohyama
    • Organizer
      平成29年電気学会全国大会
    • Place of Presentation
      富山大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Research-status Report
  • [Presentation] An Experimental Study on Time Lag Characteristic of Lightning Discharge under Wet Condition2017

    • Author(s)
      Vanny Rin and Ryu-ichiro OHYAMA
    • Organizer
      電気学会平成29年基礎・材料・共通部門大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Experimental Study on Spatial Emission Spectrum Characteristics in a Dielectric Barrier Discharge Component for Ar Atmospheric Pressure Plasma Jet Formation2015

    • Author(s)
      Tomoha Goto, Nur Shahida Midi and Ryu-ichiro Ohyama
    • Organizer
      IEEE
    • Place of Presentation
      University of Michigan
    • Year and Date
      2015-10-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 二重管型大気圧噴流プラズマ生成装置のガス混合条件に関する検討2015

    • Author(s)
      後藤友葉、大山龍一郎
    • Organizer
      電気学会平成27年基礎・材料・共通部門大会
    • Place of Presentation
      金沢大学
    • Year and Date
      2015-09-17
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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