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Studies on building layout for effective cross-ventilation

Research Project

Project/Area Number 05452262
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Architectural environment/equipment
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

KATAYAMA Tadahisa  Kyushu University, Interdisciplinery Graduate School of Engineering Sciences, Professor, 大学院・総合理工学研究科, 教授 (80017938)

Co-Investigator(Kenkyū-buntansha) TSUTSUMI Junichiro  University of Ryukyus, Faculty of Engineering, Associate Professor, 工学部, 助教授 (60192647)
HAYASHI Tetsuo  Kyushu University, Interdiscipliney Graduate School of Engineering Sciences, Ass, 大学院・総合理工学研究科, 助教授 (40150502)
塩月 義隆  九州大学, 総合理工学研究科, 助手 (40150487)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥8,000,000 (Direct Cost: ¥8,000,000)
Fiscal Year 1994: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1993: ¥6,200,000 (Direct Cost: ¥6,200,000)
KeywordsCross-Ventilation / Building Layout / Turbulent Numerical Simulation / Wind Tunnel Model Test / Air-flow arround Building / Wind Pressure Coefficient / Total Pressure Loss / High-rise Building / 室内気流分布 / 全圧損失係数 / 後流域
Research Abstract

Several cases of numerical simulation and wind tunnel tests of turbulent air flows in and around buildings were carried out for better utilization of cross-ventilation.k-e 2-equation model is adopted as a mathematical model of turbulence. The main results are summarized as follows : (1) The result of numerical simulation of an air flow around a high-rise building indicates good agreement with the distribution of wind velocity vectors in the whole simulation area measured by a tandem-type hot wire anemometer in a wind tunnel test. (2) The wind pressure coefficients on the walls facing to a narrow space between two houses are larger than those on a side wall of a single house. When the inter house gap is narrower, the change of the wind pressure in the wall is greater. (3) The absolute values of wind pressure coefficients on all the walls of regularly aligned low-rise houses are smaller and close to 0, when the building coverage ratio is larger in all the cases of wind direction. (4) The … More influence of a high-rise building model on the wind pressure on the walls of low-rise house models which are aligned regularly with a building coverage ratio of 25% around the building model becomes greater, when the building model is higher. (5) The wind pressure coefficients of low-rise house models located in the windward side of a high-rise building model are larger and those in the leeward side are smaller, when the building model is higher. (6) Numerical simulation methods employing partial refine technique are attempted successfully for the better analysis of cross-ventilation which is a continuous air flow phenomenon from the outside to the inside of a model building. (7) The estimate of a cross-ventilation rate needs total pressure drop coefficients at all the openings of a model building, because the air flow by cross-ventilation passing through the indoor space conserves its kinematic energy. The ventilation rates calculated by the conventional method based on static pressure differences and discharge coefficients of openings are smaller than actual cross-ventilation rates by 19-38%. (8) The total pressure drop coefficients at the inlet opening and that at the outlet opening of a model building are smaller than 1.0, and the latter is about a half of the former. The total pressure drop coefficients at the openings of partitions change greatly by the position of the partitions of the same shape. Especially, it is large when the partition is located to be a barrier of cross-ventilation. Less

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] J.Tsutsumi: "Numerical Simulation of Cross Ventilation in a Single-Unit House" Proceedings of Room Air Convection and Ventilation Effectiveness. 447-451 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 何 平: "局所細分割メッシュ法による通風時の室内気流分布に関する数値シミュレーション" 日本建築学会計画系論文報告集. 第456号. 17-25 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 何 平: "数値シミュレーションによる通風量の検討" 九州大学大学院総合理工学研究科報告. 16巻1号. 23-32 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 片山忠久: "地域熱環境の研究(4)-“天然の冷房"-海風" ビル空調研究会 HACTEC. No.4. 23-31 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 何 平: "建物模型周辺気流に関する3種類の風速計による風洞実験と数値シミュレーションの比較" 第13回風工学シンポジウム論文集. 567-572 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 堤純一郎: "戸建住宅の隣棟空間を挟む壁面上の風圧に関する風洞模型実験" 第13回風工学シンポジウム論文集. 143-148 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] J.TSUTSUMI: "Numerical Simulation of Cross Ventilation in a Single-unit House" Proceedings of Room Air Convection and Ventilation Effectiveness. 447-415 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Ping HE: "Local Fine Area Method for the Numerical Simulation of Cross-Ventilation" J.of Archit.Plann.Environ.Engng, AIJ. No.456. 17-25 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Ping HE: "Study on Ventilation Rate by Numerical Simulation" Engineering Sciences Reports, Kyushu Unversity. Vol.16, No.1. 23-32 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.KATAYAMA: "Studies of Urban Thermal Environment No.4, Sea Breeze as Natural Cooling Resonrce" Heating・Air Conditioning・Cooling Technology. No.4. 23-31 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Ping HE: "Comparisons between Wind Tunnel Model Tests by Three Kinds of Anemometer and Numerical Simulation on the Air Flow around a Building" Proceedings of 13th National Symposium on Wind Engineering. 567-572 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.TSUTSUMI: "Wind Tunnel Tests on the Wind Pressure on the Walls Face to the Space between Two Detached Houses" Proceedings of 13th National Symposium on Wind Engineering. 143-148 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 何 平: "数値シミュレーションによる通風量の検討" 九州大学大学院総合理工学研究科報告. 16. 23-32 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 堤 純一郎: "通風時における室内気流分布の数値シミュレーション(その12)" 日本建築学会大会学術講演梗概集. 55-56 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 何 平: "通風時における室内気流分布の数値シミュレーション(その13)" 日本建築学会大会学術講演梗概集. 57-58 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 片山 忠久: "地域熱環境の研究-“天然の冷房"-海風" ビル空調研究会HACTEC. No.4. 23-31 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 何 平: "建物模型周辺気流に関する3種類の風速計による風洞実験と数値シミュレーションの比較" 第13回風工学シンポジウム論文集. 567-572 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 何 平: "高層建物が周辺低層建物の換気・通風に及ぼす影響に関する風洞模型実験(その6)" 日本建築学会九州支部研究報告. 第34号・2. 97-100 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 堤純一郎 他3名: "Numerical Simulation of Cross-Ventilation in a Single-Unit House" Proceedings of Room Air Convection and Ventilation Effectiveness. 第456号. 447-451 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 片山忠久 他4名: "局所細分割メッシュ法による通風時の室内気流分布に関する数値シミュレーション" 日本建築学会計画系論文集. 17-25 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 片山忠久 他6名: "高層建物が周辺低層建物の接近・通風に及ぼす影響に関する風洞模型実験その4 規則的配列低層模型群の風圧分布" 日本建築学会大会学術講演梗概集 D. 811-812 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 片山忠久 他6名: "高層建物が周辺低層建物の接近・通風に及ぼす影響に関する風洞模型実験その5 高層模型の影響および気流の可視化" 日本建築学会大会学術講演梗概集 D. 813-814 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 片山忠久 他6名: "高層建物が周辺低層建物の接近・通風に及ぼす影響に関する風洞模型実験その6 換気量に及ぼす高層模型の影響" 日本建築学会大会学術講演梗概集 D. 815-816 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 片山忠久 他4名: "3種類の風速計による建物模型周辺気流の比較測定" 日本建築学会大会学術講演梗概集 D. 325-328 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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