Natural Ventilation Design Strategy For Large Ball Games In National Fitness Centers

Under the current situation of vigorously advocating national fitness,new national fitness stadiums and gymnasiums have been pouring out all over the country.As this kind of building is a new type of building,it leads to different forms and interior spaces of this kind of existing buildings.In this context,this paper mainly discusses the natural ventilation window opening design of this new type of building.The purpose of this paper is to find out the optimum form of window opening under different forms of window opening,which can meet the indoor ventilation conditions.Finally,the conclusions are summarized and transformed into design theory to guide the design of this kind of building.Firstly,the author summarizes and summarizes the relevant literature and research at home and abroad,and draws a conclusion that there are r elatively few theories and studies used to guide such architectural design in China at present.Therefore,this paper first finds and summarizes the contradictions between the design of such buildings and the requirements of building energy conservation through preliminary literature induction and field research,and then studies the contradictions.Secondly,through classifying and summarizing the comfort degree of the site,the form and combination of the site,the form of ventilated interface and the form of window opening,the simulated activity venue model is obtained.The existing forms of building window opening are summarized to lay a theoretical foundation for subsequent numerical simulation experiments.Secondly,based on the theoretical experiments of numerical simulation,after determining the boundary conditions,the influence of different forms of window opening on indoor ventilation is discussed on the basis of the basic model determined above.Several representative forms of window opening are summarized and optimized by numerical simulation.According to the different location of window opening,the summarized simulation models are classified,and the summarized models are numerically simulated.Then the quantitative and visual results are analyzed,and the relevant strategies for natural ventilation design of large global venues in the National Gymnasium are obtained.Finally,based on the data obtained,combined with the requirements of the actual usability of the building,the design strategy of natural ventilation for large ball venues in the National Gymnasium is put forward from the aspects of building orientation,windward form,ventilation vent form and whether to open skylights or not.