Numerical simulation on transient characteristics of closed loop MHD experimental facility

Hidemasa Takana, Susumu Izumi, Yoshihiro Okuno, Hiroyuki Yamasaki

研究成果: Conference contribution

抄録

Transient responses of the closed loop MHD experimental facility from non-power generation to power generation have been investigated by means of time-dependent quasi-one-dimensional numerical simulations. For the long-time continuous power generation experiment, the time required to obtain the steady state for the power generation is estimated to be approximately 20 hours. By increasing the electrical input power to the heater as an exponential function of time, the temperature increase of the ceramics can be moderated. When the duration of the experiment is around 10 minutes, argon gas temperature at the exit of the heater hardly changes because of the large heat capacity of the structure materials. It is found that the fluid disturbances are induced at the instant of the power generation and propagate as it reflects at the sudden change of the duct shape. Since the disturbances disappear taking approximately 0.4 second, the time scale that the disturbances exist in the facility can be 1 second at largest.

本文言語English
ホスト出版物のタイトル35th AIAA Plasmadynamics and Lasers Conference
出版社American Institute of Aeronautics and Astronautics Inc.
ISBN(印刷版)9781624100321
DOI
出版ステータスPublished - 2004
イベント35th AIAA Plasmadynamics and Lasers Conference 2004 - Portland, OR, United States
継続期間: 2004 6 282004 7 1

出版物シリーズ

名前35th AIAA Plasmadynamics and Lasers Conference

Conference

Conference35th AIAA Plasmadynamics and Lasers Conference 2004
国/地域United States
CityPortland, OR
Period04/6/2804/7/1

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 凝縮系物理学
  • 原子分子物理学および光学

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