Numerical simulation on non-equilibrium plasma flow in an annular hall MHD device

Hidemasa Takana, Y. Eda, Y. Okuno

研究成果: Paper査読

抄録

The characteristics of the annular Hall MHD device under the wide range of the operating conditions and physical phenomena in the device with the electrical energy extraction and addition are investigated in detail by carrying out time-dependent three-dimensional numerical simulations. This device has a cylindrical shape and has such an interesting feature from the engineering point of view as that this device can work both as the generator and the accelerator. The results show that under the high power (loading) operation, the discharge becomes steady,ho wever,under the low power (loading) operation,the lack of Joule heating induces the unsteady discharge. This unsteady discharge has a clockwise spiral structure,and rotates clockwise at the frequency of ~ 30[kHz]. Under the condition of adding electrical energy into the plasma,it was found that effective acceleration cannot be obtained if two modes of the plasma ('generation plasma' and'acceleration plasma') co-exists in the device.

本文言語English
出版ステータスPublished - 2002 1 1
外部発表はい
イベント33rd Plasmadynamics and Lasers Conference 2002 - Maui, HI, United States
継続期間: 2002 5 202002 5 23

Other

Other33rd Plasmadynamics and Lasers Conference 2002
国/地域United States
CityMaui, HI
Period02/5/2002/5/23

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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