日本語フィールド
著者：木上 洋一;塩見 憲正;高尾 学;永田 修一;今井 康貴;村上 天元;津上 由起夫;藤井 基史題名：0518 潮流発電用の往復流型ディフューザーの数値解析発表情報：機械学会流体工学部門講演会講演論文集 巻: 2015 ページ: 5181-5182キーワード：概要：The bi-directional impulse turbine and the bi-directional diffuser for tidal energy conversion is investigated in this paper. The bi-directional impulse turbine with fixed guide vanes is adopted because the turbine has a large efficiency and an advantage of maintenance. The turbine characteristics is obtained experimentally by the air turbine test rig. As a bi-directional diffuser suitable for the bi-directional impulse turbine, the diffuser geometry is proposed, which has a straight part and a semicircular brim part. By using a CFD analysis, the diffuser geometries are selected for the water flow turbine. Numerical results showed that the install of the brim can reduce the flow resistance.抄録：英語フィールド
Author：KINOUE YoichiTitle：0518 Numerical Analysis on the Bi-Directional Diffuser for Tidal Energy ConversionAnnouncement information:Fluids engineering conference Vol: 2015 Page: 5181-5182An abstract：The bi-directional impulse turbine and the bi-directional diffuser for tidal energy conversion is investigated in this paper. The bi-directional impulse turbine with fixed guide vanes is adopted because the turbine has a large efficiency and an advantage of maintenance. The turbine characteristics is obtained experimentally by the air turbine test rig. As a bi-directional diffuser suitable for the bi-directional impulse turbine, the diffuser geometry is proposed, which has a straight part and a semicircular brim part. By using a CFD analysis, the diffuser geometries are selected for the water flow turbine. Numerical results showed that the install of the brim can reduce the flow resistance.