Supersonic Flow Behavior under a Strong Lorentz Force (Effects of Area Ratio and Pressure Loss)

Kazumi Tsunoda, Yoshinori Saito, Hiroyuki Yamasaki, Nobuhiro Harada, Kunio Yoshikawa, Shigeharu Kabashima, Susumu Shioda

Research output: Contribution to journalArticle

Abstract

The effects of area ratio on electrical and fluid-dynamical properties in a disk magnetohy-drodynamic (MHD) generator have been experimentally investigated. The experimental results have shown that for a generator with a large area ratio, the wall static pressure is kept lower than that of the small area ratio generator. It is observed that high values of the Hall field are obtained at the downstream part of the channel which has a large area ratio. The stagnation pressure at the exit of the disk MHD channel was measured and compared with the results of one-dimensional calculations. It is found that in pressure loss processes a strong Lorentz force becomes quite significant relative to the wall friction which plays a major part in the pressure loss mechanism in the absence of MHD interaction.

Original languageEnglish
Pages (from-to)1769-1775
Number of pages7
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Volume58
Issue number550
DOIs
Publication statusPublished - 1992
Externally publishedYes

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Keywords

  • Area Ratio
  • Disk MHD Generator
  • Lorentz Force
  • MHD Power Generation
  • Pressure Loss
  • Stagnation Pressure
  • Supersonic Flow

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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