Research On Football Stadium Canopy Forms Optimal Design Based On Wind Environment Simulation

After the issue of General Plan of Chinese Football Reform in 2015,the attention of football program is daily increased.For the better development,our country suggests to strengthen the infrastructure construction of football facilities,so the construction of football stadium is at the corner.However football games are affected by windy weather frequently.There is a large area of China in the windy region.The wind environment of the field has an important effect on the development of football in China.So the topic set the main study aim as how to keep the wind environment within the field to adapt to the match with construction means.The canopy is the main maintenance structure of the football stadium,which plays an important role in resisting adverse weather effects.Hence,the paper finally confirms the topic,the influence of the canopy of football stadium to the wind environment within the field.The paper compares the football stadium and traditional comprehensive stadium to get the systematic knowledge of the basic space character of the football field.And then it does research on 80 built football stadium at home and abroad to confirm that the square inverted corner building plane shape is chosen as the study object.It locks the research variables in canopy plane shapes,canopy section forms and the permeability of canopy connection.Combined with the Super League averaged attendance number in recent years and the volume statics of built football in China,Japan and Korea,it predicts the suitable capacity of the football stadium in large and medium cities in China is 30 thousand and make the scale as the study object to build model.Through the literature investigation,the paper chooses the CFD software simulation method and confirms the experiment platform as STAR-CCM+ 9.04.009.The realizable k-? model was selected as the turbulence model,and the inlet wind speed was set at 5m / s,10 m / s,15 m / s at the height of 10 m using the urban gradient wind,and then the grid was divided into polygonal and prismatic meshes in the simulation experiment.In this paper,the principle of analysis is defined as "uniformity of wind field distribution","stability of wind speed variation",and "reduction of wind speed" for auxiliary principle of the windy region.It analyzes the wind speed contour maps and the wind vector diagrams of the model horizontal sections comprehensively and thinks fully about the influence of average wind speed and the main test points.It is concluded that the best canopy plane shapes is the four-connection canopy,the worst is the two-sides canopy;the best canopy section shapes is the straight-down canopy,the worst is the curved-upward canopy;the best permeability of canopy connection is the fully-open connection,the worst is the fully-closed connection.Finally,the wind environment within the field in the same additional conditions of all canopy form is gained and the design advices are suggested based on these.