基于CFD技术的城市风环境设计策略研究——以重庆市永川区凤凰湖城市设计为例

CFD simulation for wind environment design in urban areas——A case study for Yongchuan phoenix lake urban design

风环境是城市环境的一个重要组成部分。本文以重庆市永川区凤凰湖城市设计为例,建立适用于城市复杂环境条件下的风场分析模型。基于概率阈值法,对场地风速超越行人舒适阈值的概率进行数值模拟。通过模拟结果分析了场地风环境的特征及其对行人舒适度的影响,并提出相应的场地风环境品质改善策略。希望对未来的城市规划与设计有所帮助。

Wind comfort is an important requirement in urban areas. This study il ustrated by the Yongchuan Phoenix Lake urban designto simulate the flow-field of the urban design areas. Based on the exceedance-probability method, the map of wind discomfort threshold exceedance probabilitieswas present, and the pedestrian level wind environment in this area was evaluated and optimized,while hoping to provide inspiration for the development of urban planning and design in the future.