Reproduction of Actual-Sea Environment for Simulation-based Performance Evaluation of Ships

• Project/Area Number: 21360439
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Yokohama National University (2011); National Maritime Research Institute (2009-2010)
• Principal Investigator: HINO Takanori 横浜国立大学, 工学研究院, 教授 (60373429)
• Co-Investigator(Kenkyū-buntansha): KOBAYASHI Hiroshi 海上技術安全研究所, 流体性能評価系, 主任研究員 (20361503) ; OHASHI Kunihide 海上技術安全研究所, 流体性能評価系, 主任研究員 (10462871)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2009: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
• Keywords: 船舶工学 / 流体力学 / 計算物理 / CFD / 船舶流体力学 / 波浪モデル

Research Abstract

For the evaluation of ship's performance in actual-sea environment, a numerical method to reproduce irregular wave fields with given sea conditions has been developed. The use of an overlapping mesh technique which employs overlapped multiple mesh blocks makes it possible to simulate ship flows in irregular waves.

Research Products

• [Presentation] Analysis of Non-Linear/Large-Amplitude Motions of Submerged and Floating Bodies by URANS Simulation with Moving Grid Technique (2011)
  • Author(s): Nobuaki Sakamoto, Kunihide Ohashi, Hiroshi Kobayashi and Nobuyuki Hirata
  • Organizer: 第25回数値流体力学シンポジウム
  • Place of Presentation: 大阪
  • Year and Date: 2011-12-21
• [Presentation] 移動格子法による非線形・大振幅運動する物体の非定常CFD解析 (2011)
  • Author(s): 大橋訓英
  • Organizer: 第25回数値流体力学シンポジウム
  • Place of Presentation: 大阪大学(大阪府)
  • Year and Date: 2011-12-21
• [Presentation] Boundary Conditions in Numerical Wave Tank (2010)
  • Author(s): Hiroshi Kobayashi, Takanori Hino, and Kunihide Ohashi
  • Organizer: 第24回数値流体力学シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2010-12-20
• [Presentation] Boundary Conditions in Numerical Wave Tank (2010)
  • Author(s): 小林寛、日野孝則、大橋訓英
  • Organizer: 第24回数値流体力学シンポジウム
  • Place of Presentation: 慶応大学、東京
  • Year and Date: 2010-12-20
• [Presentation] Flow Simulations Using Navier-Stokes Solver SURF (2010)
  • Author(s): Takanori Hino, Kunihide Ohashi and Hiroshi Kobayashi
  • Organizer: Gothenburg 2010A Workshop on CFD in Ship Hydrodynamics
  • Place of Presentation: Sweden
• [Presentation] Flow Simulations Using Navier-Stokes Solver SURF (2010)
  • Author(s): 日野孝則、大橋訓英、小林寛
  • Organizer: Gothenburg 2010 A Workshop on CFD in Ship Hydrodynamics
  • Place of Presentation: Gothenburg, Sweden