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Development of a high-resolution CFD method for regional-scale simulation of tidal current farm

Research Project

Project/Area Number 19H02363
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 24020:Marine engineering-related
Research InstitutionKyushu University

Principal Investigator

Hu Changhong  九州大学, 応用力学研究所, 教授 (20274532)

Co-Investigator(Kenkyū-buntansha) カムラ モハメド・ムスタフア・ザキ・アハメド  九州大学, 応用力学研究所, 助教 (60870699)
末吉 誠  九州大学, 応用力学研究所, 助教 (80380533)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywords潮流発電タービン / 後流影響 / 水槽実験 / 数値流体力学 / 広域CFDモデル / 解適合格子法 / 潮流発電ファーム
Outline of Research at the Start

本研究は、潮流発電の実用化開発に必要な流体解析ツールの提供を目的として、極めて高い並列性能を有する解適合格子法に基づく非圧縮性流体ソルバーを開発し、実務への利用が可能な計算負荷で小規模潮流ファーム全体に対する数値解析が行える広域CFDモデルを構築する。また、CFDモデルの精度検証のために2機タービンの相互干渉に関する水槽実験を実施する。さらに、開発された広域CFDモデルと既存の潮流解析モデル及び汎用工学CFDソフトウェアの連成に関する研究も実施する。

Outline of Final Research Achievements

Researches have been conducted on the development of a regional-scale CFD model with extremely high parallel performance, which enables high-resolution numerical simulation of a small-scale tidal current farm with an acceptable computational cost. A model experiment on the interaction between two turbines has been carried out for validation of the CFD model. The lattice Boltzmann method was applied to the development of the wide-area CFD model. The actuator line model was modified and implemented into the lattice Boltzmann method as a tidal turbine model. The developed regional-scale CFD model has been successfully applied to high-resolution numerical simulation of a small-scale tidal current farm, with the consideration of surface waves, turbulence inflow condition.

Academic Significance and Societal Importance of the Research Achievements

複数機水車が設置される潮流発電ファームを解析する場合は広域CFD モデルによるLES が必要であるが、適切なソフトウェアがなく、関連の研究も少ない。そのために、本研究では極めて高い並列性能を有する格子ボルツマン法の応用に関する研究を行い、計算精度と計算効率の両立ができる広域CFD モデルを開発した。本研究成果により、潮流発電に特有な海面うねりの影響が考慮できる小規模潮流発電ファームの高解像度解析ができるようになり、潮流発電開発に必要な流体解析レベルを向上させるものと思われる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (6 results)

All 2022 2021 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Performance Evaluation of Lattice Boltzmann Method for Fluid Simulation on A64FX Processor and Supercomputer Fugaku2022

    • Author(s)
      Seiya Watanabe, Changhong Hu
    • Journal Title

      Proc. of International Conference on High Performance Computing in Asia-Pacific Region

      Volume: - Pages: 1-9

    • DOI

      10.1145/3492805.3492811

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Wake Prediction of Tidal Current Turbines Using Machine Learning2022

    • Author(s)
      Mohamed M. Kamra, Changhong Hu, Seiya Watanabe
    • Organizer
      日本船舶海洋工学会令和4年春季講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 波の影響を考慮した2基潮流タービンの水槽実験2021

    • Author(s)
      胡 長洪、福島 総士、カムラ モハメド、渡辺 勢也、野田 穣士朗
    • Organizer
      日本船舶海洋工学会令和3年春季講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Numerical simulation of two tidal turbine with free-surface and wave effect2021

    • Author(s)
      Mohamed M. Kamra, Changhong Hu
    • Organizer
      日本船舶海洋工学会令和3年春季講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Numerical Study of Sloshing Motion on Unstructured Mesh Using UMTHINC2019

    • Author(s)
      Mohamed M. Kamra, Changhong Hu
    • Organizer
      11th International Workshop on Ship and Marine Hydrodynamics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Floating/Submersible Shrouded Tidal Current Turbine System Applicable in Low Speed Tidal Flow2019

    • Author(s)
      Yusaku Kyozuka, Daisaku Sakaguchi, Makoto Sueyoshi, Changhong Hu
    • Organizer
      13th European Wave and Tidal Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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