Rchr
J-GLOBAL ID：200901079077229411
Update date: Jun. 05, 2024
SAKAMOTO Nobuaki
サカモト ノブアキ | SAKAMOTO Nobuaki
Affiliation and department：
Job title：
Principal Research Scientist
Research field (2)：
Fluid engineering
, Marine and maritime engineering
Research keywords (2)：
Computational Fluid Dynamics
, Computational Ship Hydrodynamics
Research theme for competitive and other funds (7)：
- 2022 - 2025 Development of data assimilation method for accurate prediction in sten flow using EnTKF and RaNS
- 2019 - 2022 界面捕獲法と気泡力学モデルを改良したプロペラキャビテーションCFD計算手法の開発
- 2016 - 2019 実船の流場計測等による船舶の高度性能評価システムの構築のための調査研究業務
- 2015 - 2016 船舶水中騒音の海洋生物への影響に関する調査研究(水中騒音プロジェクト)
- 2012 - 2015 複合材料製プロペラの研究開発
- 2012 - 2014 Development of free running simulator using viscous CFD
- 2010 - 2011 Viscous CFD simulation for ships with large amplitude motions by dynamic overset grid method
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Papers (43)：
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Nobuaki Sakamoto. Parameter Estimation for 1-eq./2-eq Turbulence Models by EnKF Data Assimilation: Twin Experiment With 2D Flat Plate. Proceedings of the ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. 2023. 7
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Nobuaki Sakamoto, Kunihide Ohashi, Hiroshi Kobayashi, Takanori Hino. Overset RaNS simulations and validations for the effect of false bottom to the KCS under static drift and static rudder in shallow water. Journal of Marine Science and Technology. 2023. 28. 1. 248-269
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Nobuaki Sakamoto, Takuya Ohmori, Kunihide Ohashi, Hiroshi Kobayashi. False bottoms revisited: computational study for KCS under pure yaw motion in shallow water (H/T = 1.2). Journal of Marine Science and Technology. 2022. 28. 1. 117-135
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Jennie Andersson, Alex Abolfazl Shiri, Rickard E. Bensow, Jin Yixing, Wu Chengsheng, Qiu Gengyao, Ganbo Deng, Patrick Queutey, Yan Xing-Kaeding, Peter Horn, et al. Ship-scale CFD benchmark study of a pre-swirl duct on KVLCC2. Applied Ocean Research. 2022. 123. #103134-103134
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Nobuaki Sakamoto, Ryosuke Suzuki, Takuya Ohmori, Hiroshi Kobayashi, Kunihide Ohashi. CFD Based Turning Circle Maneuvering Simulation for a Merchant Ship with High-lift Rudder. Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference. 2021. 2729-2736
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MISC (48)：
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Nobuaki Sakamoto, Takanori Hino, Kunihide Ohashi, Hiroshi Kobayashi. Revisiting DA for Parameters of k-ω SST Model with 2D NACA4412 and Their Application to 3D Hull Forms. Conference Proceedings The Japan Society of Naval Architects and Ocean Engineers. 2024. 38. 755-762
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Akira Nishioka, Nobuaki Sakamoto, Kunihide Ohashi, Hiroshi Kobayashi, Tokihiro Katsui, Koki Kawane, Shun Kuwahara, Hirohisa Mieno. Assessment of Roughness Models in RaNS Solver NAGISA with 2D Rotating Cylindrical Annuals. Conference Proceedings The Japan Society of Naval Architects and Ocean Engineers. 2024. 38. 807-815
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Yuya Matsunaga, Katsunao Takahashi, Yoshitaka Furukawa, Takuya Omori, Nobuaki Sakamoto, Kunihide Ohashi, Hiroshi Ibaragi. Research on Hydrodynamics Forces acting on Ship Hull running in Narrow Waterway. Conference Proceedings The Japan Society of Naval Architects and Ocean Engineers. 2023. 37. 415-420
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Masanari Kagamisono, Hironori Yasukawa, Nobuaki Sakamoto, Kunihide Ohashi, Takuya Omori, Akihiko Matsuda, Ryusuke Okuda, Masaaki Sano. Ship turning simulations in shallow water using a Free-Run CFD. Conference Proceedings The Japan Society of Naval Architects and Ocean Engineers. 2023. 37. 401-409
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Nobuaki Sakamoto, Takuya Ohmori, Kunihide Ohashi. Computational Investigation of Shallow Water Effect in Esso Osaka under Zig-Zag Maneuvers in Full Scale. Proc. Advanced Maritime Engineering Conference - AMEC 2023 -. 2023
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Patents (9)：
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航走体の水中騒音推定方法、水中騒音推定プログラム及び水中騒音推定装置
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多段ラダーバルブ、多段ラダーバルブの設計法方法、及び船舶
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船尾用ダクト、船尾用付加物、船尾用ダクトの設計方法、及び船尾用ダクトを装備した船舶
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3翼式舵及び3翼式舵付き船舶
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船尾用ダクト、船尾用ダクトの設計方法、及び線舞踊ダクトを装備した船舶
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Lectures and oral presentations (15)：
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On the necessity of data assimilation in ship hydrodynamics and its prototype development
(DAE-DO Workshop4 2024)
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False bottom effect for captive/dynamic PMM tests in shallow water
(US-Japan Joint Workshop on Ship Hydrodynamics in Hiroshima U. 2023)
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Preliminary Study of Parameter Estimation for Turbulence Models by EnKF Data Assimilation
(Workshop on Environmental Technologies in Naval Architecture and Ocean Engineering 2022)
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水槽床状態の違いが浅水域船舶操縦性評価に与える影響の解明
(令和4年度 海上技術安全研究所 第22回研究発表会 2022)
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Direct estimation for maneuverability of merchant ships by free running simulation via NMRI CFD "NAGISA"
(The 21st NMRI Annual Research Meeting 2021)
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Education (3)：
- 2005 - 2009 The University of Iowa Graduate College of Engineering, Ph.D. Department of Mechanical and Industrial Engineering
- 2003 - 2005 The University of Iowa Graduate College of Engineering, M.Sci. Department of Mechanical and Industrial Engineering
- 1999 - 2003 Osaka Prefecture University College of Engineering Department of Marine System Engineering
Professional career (2)：
- Ph.D. (The University of Iowa)
- M.Sci. (The University of Iowa)
Work history (6)：
Committee career (3)：
- 2014 - 2018 日本船舶海洋工学会 東部支部講演会実行委員
- 2015 - 2017 ISO TC8/SC8/WG14 Specialist
- 2013/05 - 2014/05 HYDRONAV2014 International scientific committee
Awards (6)：
Association Membership(s) (1)：
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