Research On Residential Area Planning Based On CFD Wind Environment Simulation

One of the city’s primary purposes is for people to live.Housing development an d building have gradually grown to play a crucial role in the nation’s urbanization pro cess.,occupying most of the city’s land such as development areas and built-up areas.Urban wind environment is one of the main factors affecting regional microclimate.,since the improvement for the quality of wind environment in residential areas would plays an important role in promoting a virtuous circle for urban microclimate.It is an urgent problem to be solved in the design of residential distriction to enhance the natural ventilation within the community and promote the rapid diffusion of air pollution,by how to quantitatively evaluate the wind environment from a technical point of view,and to reasonably arrange the community buildings in the planning and design stage of the community.The above is the background of this paper.In this paper,the technology of CFD wind environment simulation is applied to conduct quantitative research on the relationship between residential building layout and wind environment indicators,for the sake of the improvement of the quality of wind environment of the residential building,to,enhance the comfort of residents and the practical rationality of the layout.The author has sorted out and had a review of domestic and international research in the field of wind environment,and then summarized the influence factors and evaluation system of residential wind environment from two aspects,urban wind environment development research and wind environment evaluation index.Subsequently,things for the wind environment simulation has been established in this paper,by illustrating the technical concept,scope of application and workflow of CFD simulation as well as the basis of the comparison and analysis of related software,including the simulation software and related parameter setting requirements and wind environment evaluation indexes.Given this,the research object for this paper is the Fengyuan Chunhe Community in Nanchang City,and the program for the CFD wind environment simulation is the Wind Perfect DX Wufeng Building,through the construction of the residential model,the wind field of the Fengyuan Chunhe Community in Nanchang City has been assessed and analyzed in the article,the division of the region and grid system,the defination of the boundary conditions,CFD numerical simulation of the residential area.Based on the analysis results,the wind environment of the residential district has been optimized from five levels:building aspect ratio,height,dominant wind direction Angle,podium combination and building combination,then the scheme would be formed of the wind environment optimization of the residential district and the comparative evaluation and verification would be conducted before and after optimization.In the end of the paper,the proposal of planning and design model of Nanchang area residential has been raised,which could make the planning and construction of the city be more scientific and rigorous,eventually the wind environment quality of residential areas and residents’ quality of life in the city may lead into better degree.