Quantitative Research On Spatial Morphology Of Urban Block Based On Wind Environment Evaluation

Accompanied by high-speed urbanization is the decline in environmental quality,the out-of-control of the spatial form,and the residents' requirements for quality of life are getting higher and higher.The close relationship between urban microclimate and urban spatial form will have a direct impact on the comfort and quality of residents' lives.As a component of microclimate,wind environment plays an important role in environmental safety,health and comfort.Based on the architecture major,this article starts with the basic unit of the city,the outdoor wind environment evaluation as the starting point,and uses the index parameter quantitative analysis method to explore the comfortable and livable street space form to create a good urban life.Space seeks theoretical basis.The author divides this study into seven chapters to elaborate.The purpose significance of the research are explained in the first chapter,is first explained,and then the,and the overall thinking and process of the research of this subject are shown through the research framework.Chapter 2 summarizes the relevant achievements and development trends in the field of wind environment research at home and abroad,and finds that the existing research has shortcomings in the selection of spatial morphological indicators,and the conclusions of quantitative research are generally scattered.The translation of the language is inadequate,and the significance of practical guidance is not strong.Based on these problems,this paper makes corresponding supplements to the existing research and revises the research method and index system of this subject.At the same time the second half of Chapter 2 explains the research basis of the relevant theory of the subject,wind environment evaluation standards,research methods,commonly used software,etc.,explains the evaluation motives for the wind environment of Shenyang urban residential blocks,and clarifies the wind environment adopted by the research in this paper Evaluation criteria.Chapter 3 is based on the CFD numerical simulation technology.Through the design of 5 sets of single-factor control variable simulation experiments,the rule of change between the spatial morphology index of each block and the wind environment index is studied independently,and through multivariate linear Regression analysis established the corresponding regression equation.Then through experiments and statistical analysis,the changes of the four composite spatial morphological indicators and wind environment indicators were studied.Finally,the relationship between them is summarized and weighted,and the abstract morphological index is transformed into a spatial language that is easy to understand and operate.Chapter 4 verifies the accuracy of the conclusions obtained in Chapter 5 through investigation,simulation and analysis of typical example blocks in Hunnan District of Shenyang.The sixth chapter proposes the goals,principles and strategies for optimizing the spatial form of urban blocks based on the study of wind environment evaluation indicators.The strategies include: increasing the volume ratio index within a reasonable range;setting up urban blocks in conjunction with urban ventilation corridors;giving priority to the determinant Layout form;comprehensively weigh the average height and building density in the block;set the building height difference in the block;adjust the aspect ratio of the outdoor space in the block.Chapter 6 selects the example block on the water side(East Park)as a typical case,and numerically simulates the current wind environment.Then,in combination with the optimization principles and strategies explained in the previous chapter,combined with a significant simulated cloud image,the The problem of wind environment has optimized the spatial form of its block,and simulated the wind environment of the optimized block form,which shows the remarkable effect of the optimized design.Chapter 7 summarizes the research conclusions,innovations and shortcomings of the full text,and expounds the application direction of this research...