Numerical Study of Urban Canyon Microclimate Related to Geometrical Parameters

Sustainability

Andrea de Lieto Vollaro²  Giuseppe de Simone¹  Roberto Romagnoli²  Andrea Vallati²  Simone Botillo² 

[1] Dipartimento di Ingegneria Astronautica, Elettrica ed Energetica, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy;

关键词: urban canyon;    computational fluid dynamics (CFD);    solar radiation;   

DOI  :  10.3390/su6117894

来源: mdpi

【 摘 要 】

In this study a microclimate analysis on a particular urban configuration: the—street canyon—has been carried out. The analysis, conducted by performing numerical simulations using the finite volumes commercial code ANSYS-Fluent, shows the flow field in an urban environment, taking into account three different aspect ratios (H/W). This analysis can be helpful in the study on urban microclimate and on the heat exchanges with the buildings. Fluid-dynamic fields on vertical planes within the canyon, have been evaluated. The results show the importance of the geometrical configuration, in relation to the ratio between the height (H) of the buildings and the width (W) of the road. This is a very important subject from the point of view of “Smart Cities”, considering the urban canyon as a subsystem of a larger one (the city), which is affected by climate changes.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.