A Numerical Simulation-Based Adaptation of the Pedestrian-Level Wind Environment in Village Streets: A Case Study on the Chuan Dao Area of the Hanjiang River in Southern Shaanxi

Yuanhao Liu (), Jinming Wang (), Wei Bai, Bart Dewancker and Weijun Gao
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Yuanhao Liu: Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu 808-0135, Japan
Jinming Wang: Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu 808-0135, Japan
Wei Bai: School of Architecture, Chang’an University, Xi’an 710071, China
Bart Dewancker: Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu 808-0135, Japan
Weijun Gao: Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu 808-0135, Japan

Sustainability, 2024, vol. 16, issue 17, 1-25

Abstract: Village streets are indispensable spaces for people to perform outdoor activities, and they also directly affect the outdoor wind environment in villages. At present, people are paying more attention to the wind environment comfort of urban residential areas and urban commercial streets, but there is a lack of attention and research on the wind environment comfort of village and town streets. By summarizing the field research and meteorological data of Lefeng Village, we propose the outdoor wind environment evaluation requirements applicable to the Hanjiang River’s Chuan Dao area in the winter and summer seasons. We found that more than 80% of the outdoor wind environment in the summer is less than 1 m/s. Based on the numerical simulation method of computational fluid dynamics, and on the basis of the characteristics of the streets and lanes in the Hanjiang River’s Chuan Dao area, we found that the wind environment is poor in the winter and summer seasons; regarding streets and lanes, we propose three appropriate values, namely building density, building height, and street width. It is suggested that it is appropriate for the building density of the area to be less than 36%, the height of the building to be less than 15 m, and the width of the street to be 6–11 m when the street is open to traffic and 3–6 m when only pedestrians are passing through the area.

Keywords: street space; wind environment; numerical simulation; wind environment evaluation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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