都市スケールを対象とした5mメッシュ解像度による風速・気温場のCFD解析

河野 孝昭; 足永 靖信; 尹 聖皖; 李 海峰

doi:10.14887/kazekosymp.18.0.000085.0

PROCEEDINGS OF 18th NATIONAL SYMPOSIUM ON WIND ENGINEERING

DOI https://doi.org/10.14887/kazekosymp.18.0.000085.0

Conference information

Host: Science Council of Japan

Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japanese Society of Steel Construction, Japanese Society of Civil Engineering, Meteorological Society of Japan

CFD analysis of airflow and temperature at the urban scale by a 5 meter resolution

*Takaaki KONO, Yasunobu ASHIE, Seonghwan YOON, Haifeng LI

Author information

Keywords: CFD, Airflow, Temperature, Urban area, Earth Simulator

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 000085

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Abstract

CFD analysis of airflow and temperature in Tokyo area of 25 square kilometers, which includes a large river and a lot of buildings, was performed. To deal with these buildings, the horizontal mesh resolution was set as 5 meter, and highly parallel vector super computer system was used. The result showed that, the airflows from the large river and sea cooled the temperature of the surrounding areas.On the other hand, in densely built-up areas, the airflow became weak, and the temprature increased.

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