Study on Energy Saving Effect of High Thrust Rudder in Propeller Slipstream

• Project/Area Number: 15K18294
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: Kyushu University
• Principal Investigator: Kanemaru Takashi 九州大学, 工学研究院, 准教授 (90612127)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: プロペラ舵干渉 / 低抵抗舵 / プロペラ後流 / 舵抵抗計測 / SQCM / プロペラ-舵干渉 / 高推力舵 / 舵抗力

Outline of Final Research Achievements

The rudder behind the propeller generates the thrust owing to the circumferential flow in the propeller slipstream. Some researchers developed the low drag rudders using the propeller-rudder interaction. This study presents the newly developed rudder 'High Thrust Rudder' which has U-shaped notch at the leading edge on the extended line of the propeller shaft center line in order to obtain the low drag more effectively comparing with the conventional rudder. Experiment and calculation are conducted in this study and the energy saving effect by the developed rudder was confirmed.

Research Products

• [Journal Article] 前縁に切り欠き部を有する高推力舵の省エネ効果に関する研究 (2017)
  • Author(s): 金丸崇，吉武朗，安東潤
  • Journal Title: 日本船舶海洋工学会講演会論文集 Volume: 第24号
  • NAID: 40021621435
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Development of New Type Low Drag Rudders in Propeller Slipstream (2017)
  • Author(s): Takashi Kanemaru, Akira Yoshitake, Jun Ando
  • Journal Title: Proceedings of The Fifth International Symposium on Marine Propulsors Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Calculation of Propeller and Rudder Interaction Using Simplified Propeller Theory Considering Blade Loading Distribution Exactly (2016)
  • Author(s): Takashi Kanemaru, Tomohiro Ryu, Akira Yoshitake, Jun Ando
  • Journal Title: Proceedings of PRADS2016 Volume: 未定
  • Peer Reviewed
• [Journal Article] プロペラ幾何形状を厳密に考慮した簡易プロペラ理論によるプロペラと舵の干渉計算 (2015)
  • Author(s): 金丸崇，龍知宏，吉武朗，安東潤
  • Journal Title: 日本船舶海洋工学会講演会論文集 Volume: 第21号 Pages: 333-336
  • Peer Reviewed
• [Presentation] Development of New Type Low Drag Rudders in Propeller Slipstream (2017)
  • Author(s): Takashi Kanemaru, Akira Yoshitake, Jun Ando
  • Organizer: Fifth International Symposium on Marine Propulsors
  • Place of Presentation: Technopolis Innopoli 2, Espoo, Finland
  • Year and Date: 2017-06-11
  • Int'l Joint Research
• [Presentation] 前縁に切り欠き部を有する高推力舵の省エネ効果に関する研究 (2017)
  • Author(s): 金丸崇，吉武朗，安東潤
  • Organizer: 日本船舶海洋工学会
  • Place of Presentation: 東京大学生産技術研究所
  • Year and Date: 2017-05-23
• [Presentation] Calculation of Propeller and Rudder Interaction Using Simplified Propeller Theory Considering Blade Loading Distribution Exactly (2016)
  • Author(s): Takashi Kanemaru
  • Organizer: PRADS2016
  • Place of Presentation: コペンハーゲン
  • Year and Date: 2016-09-04
  • Int'l Joint Research
• [Presentation] プロペラ幾何形状を厳密に考慮した簡易プロペラ理論によるプロペラと舵の干渉計算 (2015)
  • Author(s): 金丸崇
  • Organizer: 日本船舶海洋工学会
  • Place of Presentation: 東京大学生産技術研究所
  • Year and Date: 2015-11-16