Improvement of Plasma-flow Behavior and Performance of a Disk MHD Generator under High Magnetic Flux Densities

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A two dimensional large eddy simulation has been carried out to study and compare the performance of two disk MHD generators with different wall profiles under high magnetic flux densities. One disk MHD generator has the commonly used straight disk walls and the other has newly proposed contoured disk walls. The numerical results clearly show that the generator with contoured disk walls achieves higher performance than the generator with straight disk walls, because of the improvements in the flow behavior and plasma conditions in the generator channel. For high magnetic flux densities, the flow becomes subsonic in the generator with straight disk walls and its performance tends to saturate with increasing in magnetic flux density. In the generator with contoured disk walls, on the other hand, the supersonic flow is maintained in the entire generator region and its performance increases with increasing in magnetic flux density even under the same working conditions.

収録刊行物

  • 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society  

    電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 128(2), 493-498, 2008-02-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021130391
  • NII書誌ID(NCID)
    AN10136334
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    03854213
  • NDL 記事登録ID
    9364300
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-794
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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