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1993 Fiscal Year Final Research Report Summary

Enhancement and Selectionaly Functional Control of Nonequilibrium Plasma Jet by Applying the Magnetic Field

Research Project

Project/Area Number 04805016
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionTohoku University

Principal Investigator

NISHIYAMA Hideya  Tohoku Univ., Inst., Fluid Sci., Assoc. Professor, 流体科学研究所, 助教授 (20156128)

Co-Investigator(Kenkyū-buntansha) KAMIYAMA Shinichi  Tohoku Univ., Inst., Fluid Sci., Professor, 流体科学研究所, 教授 (80006171)
Project Period (FY) 1992 – 1993
KeywordsPlasma Jet / Electromagnetic Control / Nonequilibrium Flow / Plasma Species / Numerical Simulation / Functionality / Transport Property / Electromagnetic Force
Research Abstract

Control of a non-equilibrium plasma jet by applying the magnetic field is investigated experimentally. The characteristics of plasma parameters, excited temperature and thermofluid characteristics are clarified under the different magnetic flux densities and under the magnetic field distributions of the mirror and the cusp types. With the increase of the magnetic flux density of the mirror-type, electron density, electron temperature and ion velocity increase rapidly, and furthermore, excited temperature, gas temperature and gas velocity increase slightly only in the core region. These may result from the confinement of electrons by magnetic lines of force, Lorentz force and the induced electric field effect. However, the cusp-type magnetic field shows a slight effect on the plasma characteristics, compared to the case of the mirror-type. This implies the mirror-type magnetic field is far better than the cusp-type for controlling the characteristics of a plasma jet. Seeding in the magnetic field is very effective to enhance the functionality of plasma jet.
A three-fluid model is applied here for the numerical simulation of the axisymmetric flow and temperature fields in a nonequilibrium argon plasma jet which can be controlled by applying the electromagnetic field. The three-fluid model applied here can clarify the behavior of each plasma species. Equations of conservation for each plasma species coupled with the generalized Ohm's law, Maxwell's equations and the equation of state are simultaneously solved taking into account variable transport properties. It is shown that the electron temperature is the highest and the electron velocity is strongly influenced by the magnetic field. And the momentum and energy exchanges between plasma species can be changed by even small magnetic flux.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 西山秀哉: "磁場下の非平衡プラズマジェットの数値シミュレーション" 日本機械学会論文集(B編). 59. 80-88 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 西山秀哉: "プラズマ流体工学の応用と新たな展開" ターボ機械. 21. 614-622 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 西山秀哉: "三流体モデルによる磁場下の非平衡プラズマジェットの数値シミュレーション" 日本機械学会第71期全国大会講演論文集Vol.C. C. 452-454 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤岳彦: "非平衡プラズマジェットの磁場による制御(磁場分布形状の影響)" 日本機械学会第70期通常総会講演会講演論文集. II. 281-283 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤岳彦: "磁場による非平衡プラズマジェットの制御(軸方向分布への影響)" 日本機械学会第71期全国大会講演論文集. C. 402-404 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takehiko Sato: "Magnetic Control of a Low Pressure Plasma Pipe Flow" Proc.of the Third JSME/KSME Fluids Eng.,Conf.,Sendai,. (to be published.). (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideya, Nishiyama: "Numerical Simulation of Nonequilibrium Plasma Jet in the Applied Magnetic Field" J.of Japan soc. of Mech. Engns.Vol.59. 80-88 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideya, Nishiyama: "The Industrial Applications and a New Development of the Plasma Flows" J.of Turbomachinery. Vol.21. 614-622 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideya, Nishiyama: "Numerical Simulation of Nonequilibrium Plasma Jet in the Applied Magnetic Field Using Three Fluid Model" Proc. of the 71st Autumn Annual Meeting (JSME). Col.C. 452-454 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takehiko, Sato: "Control of a Nonequilibrium Plasma Jet by Applying the Magnetic Field -- The Effect of the Magnetic Fiesd Distribution --" Proc. of the 70th Spring Annual Meeting (JSME). II. 281-283 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takehiko, Sato: "Control of a Nonequilibrium Plasma Jet by Applying the Magnetic Field -- Control Characteristics in the Streamwinse Direction --" Proc. of the 71st Autumn Annual Meeting (JSME). Col.C. 402-404 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takehiko, Sato: "Magnetic Control of a Low Pressure Plasma Pipe Flow" Proc. of the Third JSME/KSME Fluids Eng., Conf., Sendai. (to be published). (1994)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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