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Highly developed CFD method of wind load prediction and ensemble estimation for wind resistant performance based on big data

Research Project

Project/Area Number 17H01303
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/Materials
Research InstitutionTokyo Institute of Technology

Principal Investigator

Tamura Tetsuro  東京工業大学, 環境・社会理工学院, 教授 (90251660)

Co-Investigator(Kenkyū-buntansha) 河合 英徳  東京工業大学, 環境・社会理工学院, 助教 (00735376)
坪倉 誠  神戸大学, システム情報学研究科, 教授 (40313366)
吉川 優  大成建設株式会社技術センター, その他部局等, 課長 (60393667)
小野 佳之  株式会社大林組技術研究所, 都市環境技術研究部, 課長 (70393593)
野津 剛  清水建設株式会社技術研究所, その他部局等, グループ長 (10601023)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥40,430,000 (Direct Cost: ¥31,100,000、Indirect Cost: ¥9,330,000)
Fiscal Year 2019: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2018: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2017: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Keywords風荷重 / 耐風設計 / LES / ビッグデータ / アンサンブル推定 / ビックデータ
Outline of Final Research Achievements

This study aims to establish new estimation method of wind load based on LES, which has been the most accurate and sophisticated method of CFD. First, the minimum required condition for appropriate estimation of wind load using CFD is confirmed. Then, robust and reasonable estimation of wind velocity and pressure is carried out by multiscale analysis using big data on meteorological observation results and detailed data of configuration for a large city and a building. Then, for cladding attachment of building, peak value of wind pressure is directly evaluated by spatial averaging method of high-resolution pressure data. Next, disaster estimation results on wind gust are obtained from LES for actual wind disaster. Finally, methods for risk evaluation considering the deviation of estimation value are conducted based on the obtained results and information on strength of building, and statistic values for wind resistance design are shown by ensemble averaging estimation.

Academic Significance and Societal Importance of the Research Achievements

近年、学会や国において数値流体計算法(CFD)を実用的な風荷重算定に用いることを認める動きになっており,本研究で得られた実建物の耐風性能評価結果は耐風設計に関する指針を定める基礎的な資料として活用される。本課題では実建物の局所的な流れ場の解析や空間平均を用いた外装材の評価等が適切に進められ,今後CFDの利点を生かした新たな耐風性能評価への展開が期待される。さらに,近年極端気象が頻発しており,今回示された実被害とCFDによる解析結果の関係に関する研究事例は未だ少なく,本課題での推定値のばらつきを考慮したリスク評価法とその定量化は極端気象下での被災推定や減災手法の提示に貢献すると判断される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (28 results)

All 2020 2019 2018 2017

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (16 results) (of which Int'l Joint Research: 12 results)

  • [Journal Article] Large-eddy simulation study of Reynolds number effects on the flow around a wall-mounted hemisphere in a boundary layer2020

    • Author(s)
      Yong Cao, Tetsuro Tamura
    • Journal Title

      Physics of Fluids

      Volume: 32 Issue: 2 Pages: 025109-025109

    • DOI

      10.1063/1.5142371

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of aerodynamic instability for building using fluid structure interaction analysis combined with multi-degree-of-freedom structure model and large-eddy simulation2020

    • Author(s)
      Hasama Takamasa,Saka Toshihide,Itoh Yoshiaki,Kondo Koji,Yamamoto Manabu,Tamura Tetsuro,Yokokawa Mitsuo
    • Journal Title

      Journal of Wind Engineering and Industrial Aerodynamics

      Volume: 197 Pages: 104052-104052

    • DOI

      10.1016/j.jweia.2019.104052

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spanwise resolution requirements for the simulation of high-Reynolds-number flows past a square cylinder2020

    • Author(s)
      Cao Yong,Tamura Tetsuro,Kawai Hidenori
    • Journal Title

      Computers & Fluids

      Volume: 196 Pages: 104320-104320

    • DOI

      10.1016/j.compfluid.2019.104320

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] METHOD FOR ADDING HIGH FREQUENCY COMPONENTS TO A VELOCITY FIELD OBTAINED FROM A MESOSCALE METEOROLOGICAL MODEL2020

    • Author(s)
      河合英徳,田村哲郎
    • Journal Title

      Journal of Structural and Construction Engineering (Transactions of AIJ)

      Volume: 85 Issue: 767 Pages: 19-27

    • DOI

      10.3130/aijs.85.19

    • NAID

      130007792085

    • ISSN
      1340-4202, 1881-8153
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical Study of the 6 May 2012 Tsukuba Supercell Tornado: Vorticity Sources Responsible for Tornadogenesis2020

    • Author(s)
      Tao Tao, Tetsuro Tamura
    • Journal Title

      Monthly Weather Review

      Volume: 148 Issue: 3 Pages: 1205-1228

    • DOI

      10.1175/mwr-d-19-0095.1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of tornado and near-ground turbulence using a hybrid meteorological model/engineering LES method2019

    • Author(s)
      Kawaguchi Masaharu,Tamura Tetsuro,Kawai Hidenori
    • Journal Title

      International Journal of Heat and Fluid Flow

      Volume: 80 Pages: 108464-108464

    • DOI

      10.1016/j.ijheatfluidflow.2019.108464

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of wall pressures and surface flow patterns on a wall-mounted square cylinder using very high-resolution Cartesian mesh2019

    • Author(s)
      Cao Yong,Tamura Tetsuro,Kawai Hidenori
    • Journal Title

      Journal of Wind Engineering and Industrial Aerodynamics

      Volume: 188 Pages: 1-18

    • DOI

      10.1016/j.jweia.2019.02.013

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LES study on aerodynamics of auto-rotating square flat plate by IBM and SAMR2019

    • Author(s)
      Uchibori Kazuaki、Tamura Tetsuro
    • Journal Title

      Journal of Fluids and Structures

      Volume: 89 Pages: 108-122

    • DOI

      10.1016/j.jfluidstructs.2019.04.013

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Aerodynamic characteristics of a rounded-corner square cylinder in shear flow at subcritical and supercritical Reynolds numbers2018

    • Author(s)
      Yong Cao, Tetsuro Tamura
    • Journal Title

      Journal of Fluids and Structures

      Volume: vol.82 Pages: 473-491

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-resolution LES for wind pressure prediction of tall building on slight undulation2018

    • Author(s)
      Mingyu MENG, Hidenori KAWAI, Tetsuro TAMURA, Zhexu Chen
    • Journal Title

      第25回風工学シンポジウム論文集

      Volume: vol.25 Pages: 247-252

    • NAID

      130007669563

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shear effects on flows past a square cylinder with rounded corners at Re=2.22018

    • Author(s)
      Yong Cao, Tetsuro Tamura
    • Journal Title

      Journal of Wind Engineering and Industrial Aerodynamics

      Volume: vol174 Pages: 119-132

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Supercritical Flows Past a Squqre Cylinder With Rounded Corners2017

    • Author(s)
      Yong Cao, Tetsuro Tamura
    • Journal Title

      Physics of Fluids

      Volume: vol29 Issue: 8

    • DOI

      10.1063/1.4998739

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Numerical estimation of building damage in Tsukuba tornado 2012 using a hybrid meteorological mode/engineering LES method2019

    • Author(s)
      Masaharu Kawaguchi, Tetsuro Tamura, Hidenori Kawai, Wataru Mashiko
    • Organizer
      10th European Conference on Severe Storms
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Environmental Turbulence In Urban Boundary Layer -LES And Field Measurement-2019

    • Author(s)
      Hidenori Kawai, Tetsuro Tamura, Hiroki Suyama, Dung Duong
    • Organizer
      International Symposium on Turbulence and Shear Flow Phenomena
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] BCM-LES application to wind gust disaster under extreme meteorological events.2019

    • Author(s)
      Tetsuro Tamura, Masaharu Kawaguchi
    • Organizer
      72nd Annual Meeting of the APS Division of Fluid Dynamics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Uncertainty quantification on aerodynamic characteristics of flow around square and corner-rounded cylinder with glancing angle2019

    • Author(s)
      Tsubasa Hamada, Tetsuro Tamura
    • Organizer
      3 rd ECCOMAS Thematic Conference on Uncertainty Quantification in Computational Sciences and Engineering
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] LES Method for Generating Broad-Band Turbulence for Meteorological Events2018

    • Author(s)
      M.Kawaguchi, T.Tamura, T.Tao and H.Kawai
    • Organizer
      12th International EROCOFTAC Symposium on Engineering Turbulence Modelling and Measurements
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of LES Based on BCM to Wind Engineering2018

    • Author(s)
      Tetsuro Tamura, Hidenori Kawai, Duong Dung, Yong Cao, Keiji Onishi,Rahul Bale, Makoto Tsubokura
    • Organizer
      7th European Conference on Computational Fluid Dynamics (ECFD 7)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Turbulence and Pressure Fluctuation around High-Rise Building with Complicated Facade in Urban Districts2018

    • Author(s)
      Hidenori Kawai, Tetsuro Tamura, Maiko Arai, Hiroki Sayama,Takayuki Yamaguchi,Keisuke Yoshie
    • Organizer
      International Symposium on Computational Wind Engineering: CWE 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Classification of Coherent Turbulent Structures over Actual City with Scattered High-Rise-Building Cluster2018

    • Author(s)
      Tetsuro Tamura, Hidenori Kawai
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 粗面都市境界層における気象擾乱を含んだ流入変動風の作成-空間フィルタリング・リスケーリング手法の展開―2018

    • Author(s)
      河合英徳, 田村哲郎
    • Organizer
      日本建築学会大会学術講演梗概集
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高層建築物の風圧力予測に関するLES解析の精度評価 -各種計算条件に対する依存性-2018

    • Author(s)
      濵田 翼, 河合 英徳, 田村 哲郎
    • Organizer
      第32回数値流体力学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 複雑形状を持つ建物周りのピーク風圧に関する LES2017

    • Author(s)
      佐山浩輝, 河合英徳, 田村哲郎, 山口貴之, 吉江慶祐,
    • Organizer
      日本流体力学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 高密度市街地に建つ高層建築物におけるピーク風圧の発生要因2017

    • Author(s)
      新井 舞子, 河合 英徳,田村 哲郎, 吉江 慶祐
    • Organizer
      2017年度日本建築学会大会(中国)
    • Related Report
      2017 Annual Research Report
  • [Presentation] BCM-LES analysis of turbulent flows over and within actual urban canopy2017

    • Author(s)
      Tetsuro Tamura, Hidenori Kawai, Viet Dung Duong, Rahul Bale, Keiji Onishi, Makoto Tsubokura
    • Organizer
      9th Asia-Pacific Conference on Wind Engineering, APCWE-IX
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of LES to wind loading estimation on buildings2017

    • Author(s)
      Tetsuro Tamura, Koji Kondo, Hiroto Kataoka, Yoshiyuki Ono, Hidenori Kawai
    • Organizer
      9th Asia-Pacific Conference on Wind Engineering, APCWE-IX
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Generation of Higher Frequency Components for Wind Gust by Fusion2017

    • Author(s)
      Masaharu Kawaguchi, Tetsuro Tamura, Tao Tao, Hidenori Kawai
    • Organizer
      9th Asia-Pacific Conference on Wind Engineering, APCWE-IX
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Appropriate numerical conditions for practical LES of actual high rise building2017

    • Author(s)
      Hidenori Kawai, Tetsuro Tamura, Yoshiyuki Ono, Koji Kondo, Hirotoshi Kikuchi, Kazuo Otake
    • Organizer
      9th Asia-Pacific Conference on Wind Engineering, APCWE-IX
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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