Analysis of cooling effect of see breeze on urban areas considering vertical wind profiles

• Project/Area Number: 21360283
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Architectural environment/equipment
• Research Institution: Tokyo Polytechnic University
• Principal Investigator: YOSHIE Ryuichiro 東京工芸大学, 工学部, 教授 (60386901)
• Co-Investigator(Kenkyū-buntansha): SHIRASAWA Taichi 大妻女子大学, 社会情報学部, 助教 (40423420)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000); Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2010: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000); Fiscal Year 2009: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
• Keywords: CFD / ヒートアイランド / メソスケールモデル / 鉛直プロファイル / 風の道

Research Abstract

A method to appropriately classify land-use categories and to give roughness length to the WRF calculation based on GIS data was developed. The vertical profiles of wind velocity calculated by WRF using GIS data agreed very well with those of the observation data. The profiles in summer were classified into some representative patterns by using cluster analysis.
Two methods for generating inflow turbulence(both velocity and temperature fluctuations) were examined for Large Eddy Simulation(LES). The applicability of the LES to gas and thermal dispersion in urban street canyons was validated by comparing with wind tunnel experiments.
Convective heat transfer coefficients(CHTC) from various urban canopy surfaces to air were investigated by CFD simulations and wind tunnel experiments. The CHTC were generalized with respect to the urban parameters and Reynolds number.

Research Products

• [Journal Article] Inflow turbulence generation for large eddy simulation in non-isothermal boundary layers (2011)
  • Author(s): Guoyi Jiang, Ryuichiro Yoshie, Taichi Shirasawa, Xinyang Jin
  • Journal Title: Journal of Wind Engineering and Industrial Aerodynamics Volume: 104-106 Pages: 369-378
  • DOI: 10.1016/j.jweia.2012.02.030
  • Peer Reviewed
• [Journal Article] Experimental and numerical studies on convective heat transfer from various urban canopy configurations (2011)
  • Author(s): Sivaraja Subramania Pillai, Ryuichiro Yoshie
  • Journal Title: Journal of Wind Engineering and Industrial Aerodynamics Volume: 104-106 Pages: 447-454
  • DOI: 10.1016/j.jweia.2012.03.010
  • Peer Reviewed
• [Journal Article] Effects of building arrangement on ventilation performance in newly-built urban area (2011)
  • Author(s): Tingting Hu, Ryuichiro Yoshie
  • Journal Title: Proceedings of 13th International Conference on Wind Engineering Volume: (USB frash drive)
  • Peer Reviewed
• [Journal Article] Cross comparisons of CFD results of wind and dispersion fields for MUST Experiment : Evaluation exercises by AIJ (2011)
  • Author(s): Yoshihide Tominaga, Satoru Iizuka, Masashi Imano, Hiroto Kataoka, Akashi Mochida, Tsuyoshi Nozu, Yoshiyuki Ono, Taichi Shirasawa, Naoya Tsuchiya, Ryuichiro Yoshie
  • Journal Title: Proceedings of 13th International Conference on Wind Engineering Volume: (USB frash drive)
  • NAID: 130004458377
  • Peer Reviewed
• [Journal Article] Experimental and numerical studies on convective heat transfer from various urban canopy configurations (2011)
  • Author(s): Sivaraja Subramania Pillai, Ryuichiro Yoshie
  • Journal Title: Proceedings of 13th International Conference on Wind Engineering Volume: (USB frash drive)
  • Peer Reviewed
• [Journal Article] Inflow turbulence generation techniques for LES in non-isothermal condition (2011)
  • Author(s): Guoyi Jiang, Ryuichiro Yoshie, Taichi Shirasawa
  • Journal Title: Proceedings of 13th International Conference on Wind Engineering Volume: (USB frash drive)
  • Peer Reviewed
• [Journal Article] Simultaneous measurement of velocity and temperature in unstable turbulent boundary layer and numerical analysis by LES (2011)
  • Author(s): Koudai Katada, Ryuichiro Yoshie, Guoyi Jiang
  • Journal Title: Proceedings of PHYSMOD2011 Pages: 110-117
  • NAID: 10028288494
• [Journal Article] Comparison between WRF calculations and observations of vertical profiles of wind velocity (2011)
  • Author(s): Masanori Mochizuki, Ryuichiro Yoshie
  • Journal Title: Proceedings of PHYSMOD2011 Pages: 217-223
• [Journal Article] 不安定乱流境界層の風速・温度同時測定およびLESによる熱流体数値解析 (2011)
  • Author(s): 堅田弘大, 義江龍一郎
  • Journal Title: 日本風工学研究会誌 Volume: 36巻2号 Pages: 205-206
  • NAID: 10028288494
• [Journal Article] 領域気象モデルWRFによる風速鉛直プロファイルの再現(その1)台場における結果 (2011)
  • Author(s): 望月政法, 義江龍一郎
  • Journal Title: 日本風工学研究会誌 Volume: 36巻2号 Pages: 197-198
  • NAID: 10028288476
• [Journal Article] 領域気象モデルWRFによる風速鉛直プロファイルの再現(その2)南千住における結果 (2011)
  • Author(s): 義江龍一郎, 望月政法
  • Journal Title: 日本風工学研究会誌 Volume: 36巻2号 Pages: 199-200
  • NAID: 10028288477
• [Journal Article] 領域気象モデルWRFによる上空風速の発生頻度および風速鉛直プロファイルの再現精度の検証 (2011)
  • Author(s): 義江龍一郎, 望月政法
  • Journal Title: 日本建築学会大会学術講演梗概集 Volume: D-1 Pages: 715-716
• [Journal Article] CFD simulations of gas dispersion around high-rise building in non-isothermal boundary layer (2010)
  • Author(s): R. Yoshie, J. Guoyi, T. Shirasawa, J. Chung
  • Journal Title: Journal of Wind Engineering and Industrial Aerodynamics Volume: Vol.99 Issue: 4 Pages: 279-288
  • DOI: 10.1016/j.jweia.2011.01.006
  • Peer Reviewed
• [Journal Article] Subramania Pillai, Classification of Vertical Profiles of Wind Velocity and Temperature in Tokyo Area using WRF Results and Cluster Analysis (2010)
  • Author(s): J. Chung, R. Yoshie, S.
  • Journal Title: 第21回風工学シンポジウム論文集 Pages: 61-66
  • URL: http://www.jstage.jst.go.jp/article/kazekosymp/21/0/21_0_61/_article/-char/ja/
  • Peer Reviewed
• [Journal Article] CFD simulations of gas dispersion around high-rise building in non-isothermal boundary layer (2010)
  • Author(s): R.Yoshie, J.Guoyi, T.Shirasawa, J.Chung
  • Journal Title: Journal of Wind Engineering and Industrial Aerodynamics and Industrial Aerodynamics Volume: Vol.99 Pages: 279-288
  • Peer Reviewed
• [Journal Article] Classification of Vertical Profiles of Wind Velocity and Temperature in Tokyo Area using WRF Results and Cluster Analysis (2010)
  • Author(s): J.Chung, R.Yoshie, S.Subramania Pillai
  • Journal Title: 第21回風工学シンポジウム論文集 Pages: 61-66
  • NAID: 130005021448
  • Peer Reviewed
• [Journal Article] Present Situation of Outdoor Wind Environmental Issues in Japan (2009)
  • Author(s): Ryuichiro Yoshie, Masaaki Oba
  • Journal Title: Global Environmental Research Volume: Vol.13 Pages: 179-188
  • Peer Reviewed
• [Journal Article] Present Situation of Outdoor Wind Environmental Issues in Japan (2009)
  • Author(s): R.Yoshie, M.Ohba
  • Journal Title: Global Environmental Research vol.13 No.2 Pages: 179-188
  • Peer Reviewed
• [Presentation] Comparison between WRF calculations and observations of vertical profiles of wind velocity (2011)
  • Author(s): Masanori Mochizuki, Ryuichiro Yoshie
  • Organizer: PHYSMOD2011
  • Place of Presentation: Hamburg, Germany
  • Year and Date: 2011-08-23
• [Presentation] Simultaneous measurement of velocity and temperature in unstable turbulent boundary layer and numerical analysis by LES (2011)
  • Author(s): Koudai Katada, Ryuichiro Yoshie, Guoyi Jiang
  • Organizer: PHYSMOD2011
  • Place of Presentation: Hamburg, Germany
  • Year and Date: 2011-08-23
• [Presentation] Comparison between WRF calculations and observations of vertical profiles of wind velocity (2011)
  • Author(s): Masanori Mochizuki, Ryuichiro Yoshie
  • Organizer: PHYSMOD2011
  • Place of Presentation: ハンブルク大学(ドイツ)
  • Year and Date: 2011-08-23
• [Presentation] 領域気象モデルWRFによる上空風速の発生頻度および風速鉛直プロファイルの再現精度の検証 (2011)
  • Author(s): 義江龍一郎, 望月政法
  • Organizer: 日本建築学会大会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2011-08-23
• [Presentation] Simultaneous measurement of velocity and temperature in unstable turbulent boundary layer and numerical analysis by LES (2011)
  • Author(s): Koudai Katada, Ryuichiro Yoshie, Guoyi Jiang
  • Organizer: PHYSMOD2011
  • Place of Presentation: ハンブルク大学(ドイツ)
  • Year and Date: 2011-08-22
• [Presentation] Effects of building arrangement on ventilation performance in newly-built urban area (2011)
  • Author(s): Tingting Hu, Ryuichiro Yoshie
  • Organizer: 13th International Conference on Wind Engineering
  • Place of Presentation: Amsterdam, Netherlands
  • Year and Date: 2011-07-15
• [Presentation] Effects of building arrangement on ventilation performance in newly-built urban area (2011)
  • Author(s): Tingting Hu, Ryuichiro Yoshie
  • Organizer: 13th International Conference on Wind Engineering
  • Place of Presentation: RAI International Exhibition&Congress Centre(オランダ)
  • Year and Date: 2011-07-15
• [Presentation] Cross comparisons of CFD results of wind and dispersion fields for MUST Experiment : Evaluation exercises by AIJ (2011)
  • Author(s): Yoshihide Tominaga, Satoru Iizuka, Masashi Imano, Hiroto Kataoka, Akashi Mochida, Tsuyoshi Nozu, Yoshiyuki Ono, Taichi Shirasawa, Naoya Tsuchiya, Ryuichiro Yoshie
  • Organizer: 13th International Conference on Wind Engineering
  • Place of Presentation: RAI International Exhibition&Congress Centre(オランダ)
  • Year and Date: 2011-07-15
• [Presentation] Experimental and numerical studies on convective heat transfer from various urban canopy configurations (2011)
  • Author(s): Sivaraja Subramania Pillai, Ryuichiro Yoshie
  • Organizer: 13th International Conference on Wind Engineering
  • Place of Presentation: RAI International Exhibition&Congress Centre(オランダ)
  • Year and Date: 2011-07-15
• [Presentation] Inflow turbulence generation techniques for LES in non-isothermal condition (2011)
  • Author(s): Guoyi Jiang, Ryuichiro Yoshie, Taichi Shirasawa
  • Organizer: 13th International Conference on Wind Engineering
  • Place of Presentation: RAI International Exhibition&Congress Centre(オランダ)
  • Year and Date: 2011-07-12
• [Presentation] 不安定乱流境界層の風速・温度同時測定およびLESによる熱流体数値解析 (2011)
  • Author(s): 堅田弘大, 義江龍一郎
  • Organizer: 日本風工学会年次研究発表会
  • Place of Presentation: 大阪市立大学
  • Year and Date: 2011-05-25
• [Presentation] 領域気象モデルWRFによる風速鉛直プロファイルの再現(その1)台場における結果 (2011)
  • Author(s): 望月政法, 義江龍一郎
  • Organizer: 日本風工学会年次研究発表会
  • Place of Presentation: 大阪市立大学
  • Year and Date: 2011-05-25
• [Presentation] 領域気象モデルWRFによる風速鉛直プロファイルの再現(その2)南千住における結果 (2011)
  • Author(s): 義江龍一郎, 望月政法
  • Organizer: 日本風工学会年次研究発表会
  • Place of Presentation: 大阪市立大学
  • Year and Date: 2011-05-25
• [Presentation] Experimental Study on Air Ventilation in a Built-Up Area with Closely-Packed High-Rise Buildings (2011)
  • Author(s): Ryuichiro Yoshie
  • Organizer: 2011 CTBUH China Workshop
  • Place of Presentation: 同済大学(中国)(招待講演)
  • Year and Date: 2011-05-16
• [Presentation] 都市形態が大気への対流熱伝達に及ぼす影響に関する風洞実験と低Re数モデルによるCFD解析 (2010)
  • Author(s): 義江龍一郎、S. Pillai
  • Organizer: 第24回数値流体力学シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2010-12-20
• [Presentation] 都市形態が大気への対流熱伝達に及ぼす影響に関する風洞実験と低Re数モデルによるCFD解析 (2010)
  • Author(s): 義江龍一郎、S.Pillai
  • Organizer: 第24回数値流体力学シンポジウム
  • Place of Presentation: 慶応大学
• [Presentation] 非等温乱流境界層中に建つ建物後方のガス拡散・熱拡散に関する風洞実験とLES解析 (2010)
  • Author(s): 義江龍一郎、G.Jiang、白澤多一
  • Organizer: 第24回数値流体力学シンポジウム
  • Place of Presentation: 慶応大学
• [Presentation] Classification of vertical profiles of wind velocity and temperature in sea breeze using cluster analysis (2010)
  • Author(s): J.Chung, R.Yoshie
  • Organizer: 日本建築学会大会
  • Place of Presentation: 富山大学
• [Presentation] 都市表面から大気への対流熱伝達に関する風洞実験と低Re数モデルによるCFD解析(選抜梗概,都市の通風・換気),オーガナイズドセッション (2010)
  • Author(s): 義江龍一郎、S.Pillai, J.Chung
  • Organizer: 日本建築学会大会
  • Place of Presentation: 富山大学
• [Presentation] Experimental and computational studies of heat transfer from urban canopy and its dependency on urban parameters (2010)
  • Author(s): Sivaraja Subramania Pillai, Ryuichiro Yoshie, J.Y.Chung
  • Organizer: The Fifth International Symposium on Computational Wind Engineering (CWE2010)
  • Place of Presentation: アメリカ
• [Presentation] CFD simulations of gas dispersion around high-rise building in non-isothermal boundary layer (2010)
  • Author(s): R.Yoshie, J.Guoyi, T.Shirasawa, J.Chung
  • Organizer: The Fifth International Symposium on Computational Wind Engineering (CWE2010)
  • Place of Presentation: アメリカ
• [Presentation] Large eddy simulation of flowfield in high dense cities : effects of building heights on drag force and mean kinetic energy transport (2010)
  • Author(s): Taichi Shirasawa, Yoshinobu Endo, Yasuyuki Ishida, Akashi Mochida, Ryuichiro Yoshie, Hideyuki Tanaka
  • Organizer: The Fifth International Symposium on Computational Wind Engineering (CWE2010)
  • Place of Presentation: アメリカ
• [Presentation] Development, Validation, and Application of Atmospheric Boundary Layer Models and Turbulence Models for CWE(パネルディスカッションのパネラー) (2010)
  • Author(s): Ryuichiro Yoshie
  • Organizer: The Fifth International Symposium on Computational Wind Engineering (CWE2010)
  • Place of Presentation: アメリカ
• [Presentation] Overview of extreme hot weather incidents and recent study on human thermal comfort in Japan (2010)
  • Author(s): Masaaki Ohba, Ryuichiro Yoshie, Isaac Lun
  • Organizer: 6th Workshop on Regional Harmonization of Wind Loading and Wind Environmental Specifications in Asia-Pacific Economies (APEC-WW 2010)
  • Place of Presentation: 韓国
• [Presentation] 建築学会でのCFD研究の状況 (2010)
  • Author(s): 義江龍一郎
  • Organizer: 大気環境学会関東支部CFDモデル環境アセス適用性研究会
  • Place of Presentation: 日本気象協会
• [Presentation] AIJ Cooperative project for practical applications of CFD to Urban Ventilation (2009)
  • Author(s): R.Yoshie, A.Mochida, Y.Tominaga, T.Shirasawa, H.Tanaka
  • Organizer: The Seventh Asia-Pacific Conference on Wind Engineerirng(APCWE-VII)
  • Place of Presentation: Grand Hotel(台北)
  • Year and Date: 2009-11-10
• [Presentation] LESによる高密度市街地内の移流・拡散メカニズムと換気・通風性能の解析 2建物高さの非一様性がエネルギー収支の主流方向分布と粘性散逸に及ぼす影響 (2009)
  • Author(s): 遠藤芳信、持田灯、白澤多一、義江龍一郎、田中英之、石田泰之
  • Organizer: 日本建築学会大会
  • Place of Presentation: 東北学院大学(仙台)
  • Year and Date: 2009-08-29
• [Presentation] LESによる高密度市街地内の移流・拡散メカニズムと換気・通風性能の解析 3建物高さの非一様性が運動エネルギー収支の鉛直構造に及ぼす影響 (2009)
  • Author(s): 白澤多一、遠藤芳信、持田灯、義江龍一郎、田中英之、石田泰之
  • Organizer: 日本建築学会大会
  • Place of Presentation: 東北学院大学(仙台)
  • Year and Date: 2009-08-29
• [Presentation] 臨海部の高層建物群がその背後の中低層街区の風通しと気温分布に与える影響 (2009)
  • Author(s): 森遊希、義江龍一郎、白澤多一
  • Organizer: 日本建築学会大会
  • Place of Presentation: 東北学院大学(仙台)
  • Year and Date: 2009-08-26
• [Presentation] AIJ Cooperative project for practical applications of CFD to air ventilation, pollutant and thermal diffusion in urban areas (2009)
  • Author(s): R.Yoshie, A.Mochida, Y.Tominaga, T.Shirasawa, H.Tanaka
  • Organizer: The seventh International Conference on Urban Climate
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2009-07-01
• [Presentation] Large Eddy Simulation of Flow and Pressure Fields around Buildings in High Dense Cities -Effects of nonuniformity of building heights on drag force and momentum transport- (2009)
  • Author(s): Y.Ishida, Y.Endo, A.Mochida, T.Shirasawa, R.Yoshie, Hideyuki Tanaka
  • Organizer: The seventh International Conference on Urban Climate
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2009-07-01
• [Presentation] Evaluation Activities for URBAN CFD Codes in Japan (2009)
  • Author(s): R.Yoshie
  • Organizer: COST 732 WORKSHOP on "Quality Assurance of Micro-Scale Meteorological Models"
  • Place of Presentation: Hamburg University(ドイツ)
  • Year and Date: 2009-06-04
• [Remarks]
  • URL: http://www.arch.t-kougei.ac.jp/yoshie/index.html