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Evaluation of the effects on building indoor ventilation rates of unsteady and non-uniform flow field by numerical simulation

Research Project

Project/Area Number 15K14078
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Architectural environment/Equipment
Research InstitutionKyushu University

Principal Investigator

Ikegaya Naoki  九州大学, 総合理工学研究院, 助教 (70628213)

Co-Investigator(Kenkyū-buntansha) 谷本 潤  九州大学, 総合理工学研究院, 教授 (60227238)
萩島 理  九州大学, 総合理工学研究院, 教授 (60294980)
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords都市キャノピー / 非定常換気 / 推知計算 / 室内換気 / 都市乱流境界層 / 数値計算 / 都市乱流
Outline of Final Research Achievements

In this theme, series of numerical simulation have been conducted in order to clarify the effect of non-uniform and unsteady flow field generated by urban building arrays on indoor ventilation efficiency. Conclusions are summarized as follows. First, wall pressure distribution on a target building differs drastically due the surrounding building array types because of the non-uniform flow distributions. Second, suitable conditions are clarified for estimating indoor ventilation rates by conventional prediction method by classifying flow distribution patterns in the openings and by comparing gross ventilation rates and those deduced by the conventional method.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (17 results)

All 2017 2016 2015

All Journal Article (8 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (9 results)

  • [Journal Article] 大型境界層風洞におけるPIVを用いた建築物周辺の乱流場計測のデータ精度に関する検討2017

    • Author(s)
      佐藤幹, 萩島理, 池谷直樹, 谷本潤
    • Journal Title

      日本建築学会技術報告集

      Volume: 42-1 Pages: 1-8

    • Related Report
      2016 Annual Research Report
  • [Journal Article] A prediction model for wind speed ratios at pedestrian level with simplified urban canopies2017

    • Author(s)
      Naoki Ikegaya, Aya Hagishima, Tanimoto, Jun, AA Razak, Yasuaki Ikeda
    • Journal Title

      Journal of Theoretical and Applied Climatology

      Volume: 127-3 Pages: 655-665

    • Related Report
      2016 Annual Research Report
  • [Journal Article] 単純形状粗度が形成する地表面近傍乱流場に関する統計的解析2017

    • Author(s)
      池谷 直樹, 池田恭彰, 萩島 理, 谷本潤
    • Journal Title

      日本風工学会論文集

      Volume: 42-1 Pages: 1-8

    • NAID

      130006895936

    • Related Report
      2016 Annual Research Report
  • [Journal Article] 都市乱流境界層における建物壁面風圧と周辺気流に関するLarge-Eddy Simulation,2017

    • Author(s)
      池谷直樹, 廣瀬智陽子, 萩島理, 谷本潤
    • Journal Title

      日本風工学会論文集

      Volume: 42-1 Pages: 22-35

    • NAID

      130006895935

    • Related Report
      2016 Annual Research Report
  • [Journal Article] 庇を有する2 次元ストリートキャニオン周囲の気流場に関する風洞実験2016

    • Author(s)
      佐藤幹, 萩島理, 池谷直樹, 谷本潤
    • Journal Title

      日本建築学会環境系論文集

      Volume: 81-723 Pages: 467-476

    • NAID

      130005153641

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Effect of turbulent flow on wall pressure coefficients of block arrays within urban boundarylayer2016

    • Author(s)
      N Ikegaya, C Hirose, A Hagishima, J Tanimoto
    • Journal Title

      Building and Environment

      Volume: 100 Pages: 28-39

    • DOI

      10.1016/j.buildenv.2016.02.005

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Wind-tunnel study of scalar transfer phenomena for surfaces of block arrays and smooth walls with dry patches2015

    • Author(s)
      J Chung, A Hagishima, N Ikegaya, J tanimoto
    • Journal Title

      Boundary-Layer Meteorology

      Volume: 157 Issue: 2 Pages: 219-236

    • DOI

      10.1007/s10546-015-0063-3

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] A prediction model for wind speed ratios at pedestrian level with simplified urban canopies2015

    • Author(s)
      N Ikegaya, Y Ikeda, A Hagishima, AA Razak, J Tanimoto
    • Journal Title

      Theoretical and Applied Climatology

      Volume: First online Issue: 3-4 Pages: 1-11

    • DOI

      10.1007/s00704-015-1655-z

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] nstantaneous variation of wall pressure on a cube in an urban-like array under atmospheric flow2017

    • Author(s)
      Naoki Ikegaya, Aya Hagishima, Jun Tanimoto
    • Organizer
      8th Japanese-German Meeting on Urban Climatology
    • Place of Presentation
      Kansai University, Osaka
    • Related Report
      2016 Annual Research Report
  • [Presentation] 単純粗度配列の歩行者空間を対象とした平均風速による低頻度風環境予測2016

    • Author(s)
      池谷直樹, 池田恭彰, 萩島理, 谷本潤
    • Organizer
      第30回数値流体力学シンポジウム CFD2016
    • Place of Presentation
      タワーホール船堀
    • Related Report
      2016 Annual Research Report
  • [Presentation] 都市の換気研究と都市-大気間スカラー輸送現象のモデル化2016

    • Author(s)
      池谷直樹
    • Organizer
      第25回 空気シンポジウム
    • Place of Presentation
      九州大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] 都市表面のスカラーソースによる濃度境界層のスカラー粗度長に関する考察2016

    • Author(s)
      池谷直樹, 菅沼洋希, 萩島理, 谷本潤
    • Organizer
      2016年度日本建築学会大会学術講演会
    • Place of Presentation
      福岡大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] 立方体粗度の壁面風圧に対する非定常気流場の影響に関する数値流体解析2015

    • Author(s)
      池谷直樹,廣瀬智陽子,萩島理,谷本潤
    • Organizer
      日本建築学会学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-09-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 都市表面のスカラーソース偏在と粗度がスカラーバルク係数に及ぼす影響の解明 第二報 バルク係数のソースサイズ依存性及びスカラー粗度長2015

    • Author(s)
      鄭 朱娟,萩島理,池谷直樹,谷本潤
    • Organizer
      日本建築学会学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-09-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 都市表面のスカラーソース偏在と粗度がスカラーバルク係数に及ぼす影響 第一報 実験概要及びバルク係数の測定結果2015

    • Author(s)
      萩島理,鄭 朱娟,池谷直樹,谷本潤
    • Organizer
      日本建築学会学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-09-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 庇を有する2次元ストリートキャニオン周囲の気流場に関するPIV計測2015

    • Author(s)
      佐藤幹,萩島理,谷本潤,池谷直樹
    • Organizer
      日本建築学会学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-09-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 単純都市形状を対象とした地表面近傍風速に関する統計的解析と突風の評価2015

    • Author(s)
      池谷直樹,池田恭彰,萩島理,谷本潤
    • Organizer
      日本風工学会年次研究発表会
    • Place of Presentation
      徳島大学
    • Year and Date
      2015-05-27
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2018-03-22  

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