Tingzhen Ming, Yachen Liu, Tianhao Shi, et al. Numerical investigation of urban heat island effect in various urban forms[J]. Energy and Built Environment, 2026, 7(1): 54-65.
DOI:
Tingzhen Ming, Yachen Liu, Tianhao Shi, et al. Numerical investigation of urban heat island effect in various urban forms[J]. Energy and Built Environment, 2026, 7(1): 54-65. DOI: 10.1016/j.enbenv.2024.11.001.
Numerical investigation of urban heat island effect in various urban forms
摘要
Abstract
The urban heat island effect is a widespread phenomenon in major cities worldwide
exerting significant impacts on urban environments
human health
and energy consumption
thus attracting extensive research interest. The manifestation of the urban heat island effect varies across different urban forms. This study employs a three-dimensional porous media model to comprehensively analyze the urban heat island effect and the influence of wind speed on three typical urban layouts: single-center
multi-center
and grid.The results indicate: (1) The more dispersed the city center
the weaker the urban heat island intensity
with differences in peak heat island intensity of up to 0.3 K among different urban forms. (2) Under favorable environmental wind conditions
higher wind speeds lead to weaker heat island intensity. At v = 5 m/s
the grid-based heat island intensity decreases by 0.57 K. (3) With increasing building density
the urban heat island effect intensifies in all three types of cities
with the single-center city exhibiting the largest increase in heat island intensity