対流・放射・湿気連成シミュレーションによる市街地空間の温熱環境の数値解析 : その2 改良k-εモデルを用いた屋外温熱環境の緑地効果の検討

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  • タイリュウ ホウシャ シッケ レンセイシミュレーション ニ ヨル シガイチ ク
  • Numerical Analysis of Outdoor Thermal Environment in City Block Area Using Coupled Simulation of Convection and Radiation -Part 2 CFD Study on of Outdoor Thenna1 Environment sing Modified κ-ε model -

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Abstract

In this study, velocity, temperature and humidity fields in urban area were analyzed using CFD technique developed by the authors. Spatial distribution of SET* is calculated in order to assess pedestrian comfort from the CFD predictions. It was darified that 1) revised κ-ε model can predict the velocity field and temperature field more accurately than does the stndard κ-ε model, 2) greening is effective for relaxation of thermal environment on the urban area in summer,3) coupled simulation of radiation and convection with incorporating of moisture transport is very powerful tool for eva1uating the outdoor environment.

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