Abstract:The temperature and velocity fields of five common forms for urban green space pattern were simulated by CFD and remote sensing technology, in order to find the influence extent and the influence way of green space pattern on urban thermal environment. The result shows that it is feasible that CFD numerical simulation technology can be introduced to the study of urban thermal environment, with remote sensing technology to modify the parameters of the CFD model. From the simulation analysis of urban thermal environment based on the typical green space patterns, the following results can be got: Wedge-shaped pattern has the best thermal environment effect, in other words, the cooling effect of wedge-shaped pattern is the strongest for urban; the cooling effect of radial and banded pattern follows after wedge-shaped pattern; the cooling effect of point pattern is relatively weak; and the cooling effect of ring pattern is the weakest. Although the cooling effect of point pattern is relatively weak, the local vortex of velocity fields is the most obvious, so it can be used a means to improve the local micro-climate. Base on the study results, some corresponding proposals for urban green space planning and constructing are posed.
刘艳红, 郭晋平. 绿地空间分布格局对城市热环境影响的数值模拟分析
——以太原市为例
[J]. 中国环境科学, 2011, 31(8): 1403-1408.
LIU Yan-Hong, GUO Jin-Ping. Numerical simulation for the influence of green space patterns on urban thermal environment: Taking Taiyuan City as an example. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(8): 1403-1408.