Viscous CFD simulation for ships with large amplitude motions by dynamic overset grid method

2011 Fiscal Year Final Research Report

• Project/Area Number: 22760644
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Naval and maritime engineering
• Research Institution: National Maritime Research Institute
• Principal Investigator: SAKAMOTO Nobuaki 独立行政法人海上技術安全研究所, 実海域性能研究グループ, 研究員 (80550003)
• Research Collaborator: 児玉 良明 (独)海上技術安全研究所, CFD研究グループ, 嘱託研究員 ; 大橋 訓英 (独)海上技術安全研究所, CFD研究グループ, 主任研究員
• Project Period (FY): 2010 – 2011
• Keywords: 推進/運動性能 / CFD / 重合格子

Research Abstract

Investigation of ship motions in waves would be one of the crucial issues in ship-hydrodynamics to achieve safety transportation of surface vessels in real sea state. Computational Fluid Dynamics(CFD) software has been developed in order to solve incompressible viscous flow around ships moving in waves. The validity of the code has been confirmed throughout comparisons between computational results and experimental/reference data of unsteady motions of 2D and 3D objects.

Research Products

• [Journal Article] Analysis of nonlinear/large-amplitude motions of submerged and floating bodies by URANS simulation with moving grid technique (2011)
  • Author(s): Sakamoto, N., Ohashi, K., Kobayashi, H. and Hirata, N
  • Journal Title: Proceedings of The 25^<th> Computational Fluid Dynamics Symposium, Suita, Japan
  • URL: http://www2.nagare.or.jp/cfd/cfd25/
• [Journal Article] Unsteady flow simulations for dynamically-moving 2D and 3D geometries by unstructured grid based RANS solver (2010)
  • Author(s): Sakamoto, N. and Hino, T
  • Journal Title: Proceedings of The 13^<th> Numerical Towing Tank Symposium, Duisburg, Germany
  • URL: http://www.uni-due.de/IST/ismt_nutts8
• [Journal Article] URANS simulation of a ship flow with dynamic motion by a moving grid method (2010)
  • Author(s): Sakamoto, N. and Hino, T
  • Journal Title: Proceedings of The 24^<th> Computational Fluid Dynamics Symposium, Hiyoshi, Japan
  • URL: http://www2.nagare.or.jp/cfd/cfd24/
• [Presentation] Analysis of nonlinear/large-amplitude motions of submerged and floating bodies by URANS simulation with moving grid technique (2011)
  • Author(s): Sakamoto, N., Ohashi, K., Kobayashi, H. and Hirata, N
  • Organizer: The 25^<th> Computational Fluid Dynamics Symposium
  • Place of Presentation: Suita, Japan
  • Year and Date: 20110000
• [Presentation] Unsteady flow simulations for dynamically-moving 2D and 3D geometries by unstructured grid based RANS solver (2010)
  • Author(s): Sakamoto, N. and Hino, T
  • Organizer: The 13^<th> Numerical Towing Tank Symposium
  • Place of Presentation: Duisburg, Germany
  • Year and Date: 20100000
• [Presentation] URANS simulation of a ship flow with dynamic motion by a moving grid method (2010)
  • Author(s): Sakamoto, N. and Hino, T
  • Organizer: Proc. The 24^<th> Computational Fluid Dynamics Symposium
  • Place of Presentation: Hiyoshi, Japan
  • Year and Date: 20100000