文章基本信息

标题：Effects of the wind speeds on heat transfer in a street canyon with a skytrain station
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作者：Surapa Pothiphan ; Nathnarong Khajohnsaksumeth ; Benchawan Wiwatanapataphee 等
期刊名称：Advances in Difference Equations
印刷版ISSN：1687-1839
电子版ISSN：1687-1847
出版年度：2019
卷号：2019
期号：1
页码：1-15
DOI：10.1186/s13662-019-2175-4
出版社：Hindawi Publishing Corporation
摘要：The street under a skytrain station can be seen in many urban cities. Due to the cavity geometry of the street canyon, natural ventilation is decreased. The reduction of the ventilation causes the heat accumulation in the street canyon. To keep the thermal climate at an acceptable level in the street canyon, controlling the air movement with proper temperature is important. In this paper, mathematical models of air flow and heat transfer in the skytrain street canyon are developed. The governing equations are the Reynolds-averaged Navier–Stokes equations and the energy equation. Finite element method is applied for the solution of the problem. The effect of wind speeds on temperature distribution in the street canyon is investigated. Three levels of wind speed including gentle, moderate, and strong wind speeds are chosen in this study. The results indicate that our model can capture the air flow and temperature distribution within a street canyon with a skytrain station.
关键词：Street canyon;k-ε turbulence model;Finite element method;Heat transfer;Skytrain station