ターボ機械
Online ISSN : 1880-2338
Print ISSN : 0385-8839
ISSN-L : 0385-8839
32 巻, 3 号
選択された号の論文の9件中1~9を表示しています
特集 : ターボ機械の故障診断技術
展望・解説
論文
  • 塚本 直史, 稲垣 守人, 渡部 忠彦, 大和 昌一, 西 道弘
    原稿種別: その他
    専門分野: その他
    2004 年 32 巻 3 号 p. 176-182
    発行日: 2004年
    公開日: 2005/08/12
    ジャーナル フリー
    In Japan, there are enormous sites of low head under the output of 100kW for undeveloped hydraulic potential energy. The hydraulic propeller turbine is advantageous to select higher rated speed compared with Francis type. On the other hand, the propeller turbine cannot be applied higher range due to the strength of runner for single arrangement. Accordingly it is possible to arrange the propeller turbines in series for higher head area. In this case, the performance of downstream side turbine is affected by the draft tube exit flow of upstream turbine. The authors experimented two same tubular turbines with serial arrangement, and confirmed this influence. The reason is reported in this paper from the viewpoint of measurement of internal flow in the draft tube and numerical flow analysis.
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