Simulation Study on Improving Pedestrian-Level Wind Environment in Courtyards

学生名:蒋正容

研究テーマ:Simulation Study on Improving Pedestrian-Level Wind Environment in Courtyards

(コートヤードにおける歩行者レベルの風環境改善に関するシミュレーション研究)

入学年月:2021.10

修了年月:2024.09

取得学位:博士（工学）

論文概要: This study aims to improve the pedestrian-level wind environment in courtyards. The effects of different courtyard enclosure forms, side heights, opening locations, opening sizes, and wind angles on the courtyard wind environment were quantitatively analyzed through computational fluid dynamics simulations, using indicators such as mean wind speed ratio, static wind zone ratio, and comfort wind zone ratio. Comfort wind zone ratio models for different enclosed forms, side heights, opening sizes and wind angles were established, and optimization strategies for the wind environment of courtyards were proposed. These strategies were applied to a large courtyard residential district and further validated for their effectiveness. The results of this study can guide the design of courtyards and the optimization of the courtyard wind environment.
Chapter 1 introduces the background and purpose of the study. Issues such as urban heat islands, air pollution, and low wind speeds in urban areas in the context of urbanization are outlined, and the purpose of this study is presented.
Chapter 2 reviews the literature related to the pedestrian-level wind environment. The value and information of key literature and scholars are summarized. Additionally, the research methods, study scale, study subjects, and factors impacting the wind environment are summarized.
Chapter 3 covers the research subjects and methods, starting with the selection of the study area and subjects. It then describes the computational fluid dynamics simulation methods and the evaluation standards for pedestrian wind environments.
Chapter 4 quantitatively analyzes the effects of different courtyard enclosure forms, side heights, and wind angles on the courtyard wind environment. Wind comfort zone ratio models for side heights and wind angles are established.
Chapter 5 quantitatively analyzes the effects of different opening positions, sizes, and wind angles on the wind environment of enclosed courtyards. Wind comfort zone ratio models for different opening sizes and wind angles are established.
Chapter 6 optimizes the wind environment by changing the boundary settings of the residential district based on the optimization strategies from previous chapters. The research results further verify the effectiveness of these strategies.
Chapter 7 presents the conclusions and outlook.