CFD模拟下基于风适宜度的沿海岙型地形选址分析——以东亚为例（英文）
发布时间：2018-10-24 13:47
【摘要】：目的:风环境直接影响居住建筑室内外自然通风、舒适度以及污染物扩散情况。本文以居住建筑选址分析为目的,建立一系列针对东亚沿海岙型地形的风环境评价方法,分析影响风环境特点的主要因素,提出风适宜度评价模型,探讨风环境与主要地形因子之间的相关性。创新点:1.建立东亚沿海典型岙型地形的分类数据库;2.提出基于选址分析的风适宜度模型;3.建立风适宜度与地形因子之间的回归模型。方法:1.通过CFD模拟的方法,计算典型工况下20种岙型地形的风场(图5);2.通过理论分析和数理耦合的方法,构建风适宜度模型(公式(4));3.通过Logistic回归方法,分析风适宜度与地形因子的相关性。结论:1.风适宜度直接受地形特征影响,开口面向来风向的岙型地形中风适宜度平均值最高,选址过程中应避开开口背向来风向的岙型地形;2.通过多元回归分析得出风适宜度和地形因子的相关性显著,其中海拔是决定风适宜度的主要地形因子。
[Abstract]:Objective: the wind environment directly affects indoor and outdoor natural ventilation, comfort and pollutant diffusion in residential buildings. For the purpose of location analysis of residential buildings, this paper establishes a series of wind environment evaluation methods for east Asian coastal ao topography, analyzes the main factors affecting the wind environment characteristics, and puts forward a wind suitability evaluation model. The correlation between wind environment and main terrain factors is discussed. Innovation: 1. To establish the classification database of typical ao type topography in East Asia coast; 2. The wind suitability model based on location analysis is proposed. 3. A regression model between wind suitability and topographic factors was established. Methods: 1. By means of CFD simulation, the wind fields of 20 types of ao topography under typical working conditions are calculated (Fig. 5); 2. Through theoretical analysis and mathematical coupling method, the wind suitability model is constructed (formula (4); 3). The correlation between wind suitability and topographic factors was analyzed by Logistic regression method. Conclusion: 1. The wind suitability is directly affected by the topographic characteristics, and the mean value of stroke suitability of ao type terrain with openings facing to the wind direction is the highest, and the ao-type terrain with the orifice backwind direction should be avoided in the process of selecting the site. 2. By multivariate regression analysis, the correlation between wind suitability and topographic factors is significant, and elevation is the main terrain factor that determines the wind suitability.
【作者单位】： Urban
【基金】：supported by the National Natural Science Foundation of China(Nos.51208466 and 51238011) the Science and Technology Research Program of Chinese Ministry of Housing and Urban-Rural Development(No.2014R2-036) the Humanities and Social Sciences Research Foundation of the Ministry of Education(No.17YJAZH136) the Natural Science Foundation of Zhejiang Province(No.LY16E0 80011) the Social Sciences Planning Project of Zhejiang Province(No.12JCSH02YB),China
【分类号】：TU119
本文编号：2291581
[Abstract]:Objective: the wind environment directly affects indoor and outdoor natural ventilation, comfort and pollutant diffusion in residential buildings. For the purpose of location analysis of residential buildings, this paper establishes a series of wind environment evaluation methods for east Asian coastal ao topography, analyzes the main factors affecting the wind environment characteristics, and puts forward a wind suitability evaluation model. The correlation between wind environment and main terrain factors is discussed. Innovation: 1. To establish the classification database of typical ao type topography in East Asia coast; 2. The wind suitability model based on location analysis is proposed. 3. A regression model between wind suitability and topographic factors was established. Methods: 1. By means of CFD simulation, the wind fields of 20 types of ao topography under typical working conditions are calculated (Fig. 5); 2. Through theoretical analysis and mathematical coupling method, the wind suitability model is constructed (formula (4); 3). The correlation between wind suitability and topographic factors was analyzed by Logistic regression method. Conclusion: 1. The wind suitability is directly affected by the topographic characteristics, and the mean value of stroke suitability of ao type terrain with openings facing to the wind direction is the highest, and the ao-type terrain with the orifice backwind direction should be avoided in the process of selecting the site. 2. By multivariate regression analysis, the correlation between wind suitability and topographic factors is significant, and elevation is the main terrain factor that determines the wind suitability.
【作者单位】： Urban
【基金】：supported by the National Natural Science Foundation of China(Nos.51208466 and 51238011) the Science and Technology Research Program of Chinese Ministry of Housing and Urban-Rural Development(No.2014R2-036) the Humanities and Social Sciences Research Foundation of the Ministry of Education(No.17YJAZH136) the Natural Science Foundation of Zhejiang Province(No.LY16E0 80011) the Social Sciences Planning Project of Zhejiang Province(No.12JCSH02YB),China
【分类号】：TU119
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