绿色空间不同布局的参数化设计及微气候模拟

Microclimate simulation and parametric design of different layout of green space

以行列式和围合式2种布局方式为例,使用ENVI-met软件,通过场地内的建筑物高度、植被高度和绿量参数的变化,来模拟微气候的变化。结果表明,增加场地内的建筑高度或者植物高度,两者的天空视域因子、湍流动能、长波辐射量和散射量的变化趋势是相同的,但温度、湿度和风速的变化在两者之中是不同的,在行列式布局中,天空视域因子减小了0.04,湿度平均增加了11.82%,风速平均增加了2.60%;在围合式布局中,天空视域因子减小了0.13,湿度平均降低了3.81%,风速平均降低了8.60%。

Taking determinat and enclosure layout as examples,the ENVI-met software was used to simulate the changes of microclimate through the changes of building height,vegetation height and green quantity parameters in the site.The results showed that increasing the height of the building or plant in the site did not change the changing trends of their SVF,TKE,Lw radiation and scattering,but the changes in temperature,humidity,and wind speed are different between the two.In the determinant layout,the SVF decreased by 0.04,the changes of humidity increased by 11.82%,and the changes of the wind speed increased by 2.60%.While in the closure layout,the SVF decreased by 0.13,the changes of humidity decreased by 3.81%,and the changes of the wind speed decreased by 8.60%.