Coupling of street space integration and wind field,and its optimization——a case study of Wuhan
Street layout affects the pedestrian accessibility and ventilation efficiency.We adopted the method of combining computational fluid dynamics(CFD)simulation and space syntax Depth map simulation to explore the coupling between the characteristics of wind field based on the street layout and space integration index and to summarize the law of coupling.The conclusions are as follows:(1)The ventilation effect of buildings which are staggered left and right in the middle row is the best,but the integration index is significantly lower than that of the aligned ones;(2)The ventilation effect of buildings which are staggered front and back inside is the best,but the integration index is the lowest;(3)The integration index of buildings which are staggered front and back outside is the highest,significantly higher than that of the aligned ones,but the ventilation effect is the worst;(4)The ventilation effect of long streets is better,but the integration index is low,and the integration index of short streets is higher.By optimizing the street space,such as adjusting the building shapes,changing the building layout,and adding interfaces along the streets,the activity in the street and good ventilation can be well correlated,and a better ventilated environment for pedestrians can be created.
space syntaxCFD simulationintegration indexspace optimization
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