Development of Innovative Method for Three-Dimensional Aerodynamic design of Wind-Lens Turbine and Challenge to the Theoretical Betz Limit

• Project/Area Number: 24360072
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Kyushu University
• Principal Investigator: FURUKAWA MASATO 九州大学, 工学(系)研究科(研究院), 教授 (30181449)
• Co-Investigator(Kenkyū-buntansha): MORI Hideo 九州大学, 大学院工学研究院, 准教授 (70362275) ; YAMADA Kazutoyo 九州大学, 大学院工学研究院, 助教 (00344622)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2014: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2013: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2012: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
• Keywords: 風力発電 / 風レンズ / 空力設計法 / 最適設計 / ベッツ限界 / 再生可能エネルギー / 風力 / 流体工学 / 風レンズ風車

Outline of Final Research Achievements

A three-dimensional aerodynamic design method for the wind-lens turbine has been developed, which consists of the meridional viscous flow analysis and the two-dimensional blade element design. A multi-objective optimal design approach for the wind-lens and the rotor blade has been constructed by combining the present aerodynamic design method for the wind-lens turbine and the genetic algorithm (GA). The present optimal design approach can achieve the simultaneous optimization of the rotor blade loading distribution and the wind-lens shape. The aerodynamic performance and the flow field for a Pareto optimal solution of wind-lens turbines designed by the present optimal design approach has been investigated by wind-tunnel tests and three-dimensional Reynolds averaged Navier-Stokes (RANS) simulations. It was found that the wind-lens turbine can realize the transcendence of the theoretical Betz limit with the present optimal design.

Research Products

• [Journal Article] レンズ風車の最適空力設計 (2014)
  • Author(s): 岡信仁，木戸康太，岡明宏，古川雅人，山田和豊
  • Journal Title: 日本流体力学会学会誌「ながれ」 Volume: 33巻 Pages: 153-160
  • Acknowledgement Compliant
• [Journal Article] Simultaneous Optimization of Rotor Blade and Wind-lens for Aerodynamic Design of Wind-lens Turbine (2014)
  • Author(s): Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Kenta Kawamitsu, Kota Kido, Akihiro Oka
  • Journal Title: Proceedings of the ASME Turbo Expo 2014 Volume: GT2014-25770 Pages: 1-10
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Aerodynamic Performance of a Wind-lens Turbine with Optimized Blade Loading Distribution and Wind-lens Shape (2014)
  • Author(s): Nobuhito Oka, Masato Furukawa, Kota Kido, Akihiro Oka, Yasushi Kurokawa
  • Journal Title: Proceedings of the Grand Renewable Energy 2014 Volume: O-Wd-6-1 Pages: 1-3
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Aerodynamic Design of Wind-Lens Turbine with Axisymmetric Viscous Flow Calculation using Lattice Boltzmann Method (2014)
  • Author(s): Nobuhito Oka, Kota Kido, Kazutoyo Yamada, Masato Furukawa
  • Journal Title: Proceedings of 5th Asian Joint Workshop on Thermophysics and Fluid Science 2014 Volume: AJWTF5-JP48 Pages: 1-6
  • Acknowledgement Compliant
• [Journal Article] Aerodynamic Design for Wind-Lens Turbine Using Optimization Technique (2013)
  • Author(s): Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Kota Kido
  • Journal Title: Proceedings of the ASME 2013 Fluids Engineering Summer Meeting Volume: FEDSM2013-16569
  • Peer Reviewed
• [Journal Article] Numerical Analysis of Vortical Flow Field around Wind-Lens Turbines (2013)
  • Author(s): Nobuhito Oka, Kenta Kawamitsu, Soichiro Tabata, Masato Furukawa, Kazutoyo Yamada, Kota Kido
  • Journal Title: Proceedings of the 4th International Conference on Jets, Wakes and Separated Flows Volume: ICJWSF2013-1130
  • Peer Reviewed
• [Presentation] 格子ボルツマン法を用いたターボ機械の軸対称粘性流れ解析手法の確立 (2014)
  • Author(s): 岡信仁，木戸康太，古川雅人，山田和豊
  • Organizer: 第28回数値流体力学シンポジウム
  • Place of Presentation: タワーホール船堀（東京都）
  • Year and Date: 2014-12-09 – 2014-12-11
• [Presentation] レンズ風車によるベッツ限界の超越に向けて (2014)
  • Author(s): 岡信仁，黒川靖，古川雅人，山田和豊
  • Organizer: 第92期日本機械学会流体部門講演会
  • Place of Presentation: 富山大学（富山市）
  • Year and Date: 2014-10-25 – 2014-10-26
• [Presentation] 格子ボルツマン法を用いた軸対称粘性流れに基づくレンズ風車の空力設計 (2014)
  • Author(s): 岡明宏，木戸康太，岡信仁，山田和豊，古川雅人
  • Organizer: 第72回ターボ機械協会大分講演会
  • Place of Presentation: 大分工業高等専門学校（大分市）
  • Year and Date: 2014-10-03
• [Presentation] 翼負荷および風レンズ体が連成最適化されたレンズ風車まわりの流れ場に関するEFDおよびCFD解析 (2014)
  • Author(s): 岡信仁，岡明宏，黒川靖，古川雅人
  • Organizer: 日本機械学会年次大会2014
  • Place of Presentation: 東京電機大学（東京都）
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 翼負荷分布および風レンズ形状が最適化されたレンズ風車の空力性能 (2014)
  • Author(s): 岡 明宏，黒川 靖，木戸康太，岡 信仁，古川 雅人
  • Organizer: 日本機械学会九州支部第67期総会・講演会
  • Place of Presentation: 福岡市
• [Presentation] 遺伝的アルゴリズムと準三次元流動解析を用いた風レンズ風車の最適空力設計 (2013)
  • Author(s): 岡信仁
  • Organizer: 日本機械学会九州支部第66期総会・講演会
  • Place of Presentation: 九州産業大学工学部(福岡)
  • Year and Date: 2013-03-13
• [Presentation] 風レンズ風車の翼車と風レンズの連成最適設計 (2013)
  • Author(s): 木戸 康太，川満健太，岡 信仁，岡 明宏，古川 雅人
  • Organizer: 第91期日本機械学会流体工学部門講演会
  • Place of Presentation: 福岡市
• [Presentation] レンズ風車の最適空力設計 (2013)
  • Author(s): 岡 信仁，木戸 康太，岡 明宏，古川 雅人，山田 和豊
  • Organizer: 第27回数値流体力学シンポジウム
  • Place of Presentation: 名古屋市
• [Presentation] 最適化手法を用いた風レンズ風車の空力設計 (2012)
  • Author(s): 川満健太
  • Organizer: 日本機械学会第90期流体工学部門講演会
  • Place of Presentation: 同志社大学今出川キャンパス(京都)
  • Year and Date: 2012-11-18
• [Presentation] 感圧塗料を用いた低速流れ場における非定常計測技術 (2012)
  • Author(s): 川幡宏亮
  • Organizer: 日本機械学会第90期流体工学部門講演会
  • Place of Presentation: 同志社大学今出川キャンパス(京都)
  • Year and Date: 2012-11-18
• [Presentation] 子午面粘性流れ解析による軸流タービン翼列流れの予測 (2012)
  • Author(s): 古川雅人
  • Organizer: 第40回日本ガスタービン学会定期講演会
  • Place of Presentation: 釧路市観光国際交流センター(釧路)
  • Year and Date: 2012-10-17
• [Presentation] 風レンズ風車の空力性能と流れ場との関係
  • Author(s): 岡 信仁，古川 雅人，川満 健太，山田 和豊，木戸 康太
  • Organizer: ターボ機械協会第69回総会講演会
  • Place of Presentation: 東京都