Re-construction of Ship Resistance Theory using CFD and Tank Tests

• Project/Area Number: 18H01638
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 24020:Marine engineering-related
• Research Institution: Yokohama National University
• Principal Investigator: Hino Takanori 横浜国立大学, 大学院工学研究院, 教授 (60373429)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000); Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2020: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2019: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: 船舶流体力学 / CFD / 船体抵抗 / 船体抵抗理論 / 計算流体力学 / 水槽試験 / 船体抵抗論 / 摩擦抵抗 / 圧力抵抗

Outline of Final Research Achievements

The objective of the present study is to develop a new method for separating resistance components of a ship based on hydrodynamic principle with the aid of CFD analysis. The developed separation method is applied to the resistance extrapolation from a model scale to a ship scale. The reconstruction of ship Resistance theory is achieved by considering validity of various assumptions to separate the resistance components, such as flat plate friction, form factor for viscous resistance and wave making resistance. CFD methods including a newly developed inviscid flow computation methods are applied for flow analyses and characteristics of each resistance component is extracted. Based on the obtained knowledge, a new procedure for extrapolating resistance of a full scale ship from tank test data of a model ship is proposed.

Academic Significance and Societal Importance of the Research Achievements

CFDを援用することで、従来の水槽試験結果による実船の抵抗性能推定における流体力学的不合理性を解消する方法を提案した。これにより、実船の性能推定精度が向上し、近年の地球温暖化対応のCO2排出規制に伴う抵抗低減船型の研究開発における高精度水槽試験のニーズの高まりに対応することが可能となった。

Research Products

• [Int'l Joint Research] SSPA(スウェーデン)
• [Int'l Joint Research] Strathclyde U.(英国)
• [Int'l Joint Research] NRC(カナダ)
• [Int'l Joint Research] HSVA(ドイツ)
• [Int'l Joint Research] U. Michigan(米国)
• [Int'l Joint Research]
• [Int'l Joint Research] SSPA(スウェーデン)
• [Int'l Joint Research] Strathclyde Univ.(英国)
• [Int'l Joint Research] NRC(カナダ)
• [Int'l Joint Research] HSVA(ドイツ)
• [Int'l Joint Research] Univ. Michigan(米国)
• [Int'l Joint Research]
• [Int'l Joint Research] SSPA(スウェーデン)
• [Int'l Joint Research] Southampton Univ./Strathclyde Univ.(英国)
• [Int'l Joint Research] NRC(カナダ)
• [Int'l Joint Research] HSVA(ドイツ)
• [Int'l Joint Research] U. Michigan(米国)
• [Int'l Joint Research]
• [Journal Article] CFD based form factor determination method (2021)
  • Author(s): Korkmaz Kadir Burak、Werner Sofia、Sakamoto Nobuaki、Queutey Patrick、Deng Ganbo、Yuling Gao、Guoxiang Dong、Maki Kevin、Ye Haixuan、Akinturk Ayhan、Sayeed Tanvir、Hino Takanori、Zhao Feng、Tezdogan Tahsin、Demirel Yigit Kemal、Bensow Rickard
  • Journal Title: Ocean Engineering Volume: 220 Pages: 108451-108451
  • DOI: 10.1016/j.oceaneng.2020.108451
  • Peer Reviewed / Int'l Joint Research
• [Presentation] 粘性・非粘性 CFD を用いた船舶の抵抗成分分離 (2021)
  • Author(s): 日野孝則 高木洋平
  • Organizer: 第 35 回数値流体力学シンポジウム
• [Presentation] CFD技術 (2020)
  • Author(s): 日野孝則 大橋訓英
  • Organizer: 日本船舶海洋工学会「GHG非出ゼロに向けた船舶流体力学の現状と展望」
• [Presentation] Hydrodynamic Design and Analysis of High Speed Catamaran with Hydrofoils using CFD (2019)
  • Author(s): Shinji Hashimoto , Takanori Hino , Mikito Shirai, Om Prakash Sha , Bijit Sarkar , Jun Kambara and Yoshihisa Fujimoto
  • Organizer: PRADS2019
  • Int'l Joint Research
• [Presentation] Development of CFD methods for Industrial Ship Flow Applications (2019)
  • Author(s): Takanori Hino
  • Organizer: 32nd Symposium on Naval Hydrodynamics
  • Int'l Joint Research / Invited