Analysis of the Thermal and Humid Environment of Building Blocks Under the Synergistic Effect of Green and Blue Spaces
In order to analyze the thermal and humid environment of the building blocks around the lake under the synergistic effect of green and blue space,the CFD(Computational Fluid Dynamics)method was used to carry out numerical simulation of four typical building blocks,namely,the contour type(H=8 m,12 m),the rising type and the falling type around the lake.The results show that un-der the influence of airflow,the green and blue spaces have no effect on the temperature and humidity of upstream building blocks,while significantly affect the temperature and humidity of middle and downstream building blocks,especially in the central areas on both banks and downstream.The height change and height difference of the building blocks have a greater impact on the temperature and humidity field in the street valley.For the contour type(H=8 m)and the rising type around the lake,due to the low building height,the air flow passes through the block faster,forming a"Diffusive Form"temperature and humidity distribution.The contour type(H=12 m)and the descending type around the lake have not had enough time for the low temperature air flow to settle over the water body,forming a"Aggregate Form"temperature and humidity distribution,thus forming multiple cold vortices near the vegetation,thus producing a local"cold island effect".The research results show that Blue space can replace some dense building blocks,and under the synergistic effect of green space,the building block environment can be greatly optimized through reasonable layout.
green and blue spacebuilding blocks around the lakeCFDdiffusive formaggregate formcold island effect
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