期刊论文

Simulation of Urban Lake Cooling Effect with Varying Lake Factors: Case Study of Hunan Martyrs Park Lake

中文

长江科学院院报

1001-5485

2020

37

2

34-40

10.11988/ckyyb.20180933

湖南省教育厅科学研究项目(13C1135) 国家林业局“十三五”重点学科(风景园林学)项目([2016]21号) 中南林业科技大学高等学校“十三五”专业综合改革试点项目(城乡规划学)

本校为第一机构

城市湖泊在降低城市热岛效应方面有着重要影响。选取湖南烈士公园湖泊作为研究对象,采用定点实测和CFD模拟相结合的方法,重点分析了湖泊面积和湖泊形状指数对湖泊降温效应的影响程度。研究结果表明:①湖泊面积是湖泊降温效应的主要影响因子,面积越小湖泊降温效应越弱,当研究区域无湖泊时区域内整体平均升温1.8℃,湖泊区域绿地最大可升温4.1℃;②湖泊形状指数的大小对湖泊降温效应的影响微弱,湖泊降温效应随着形状指数的增大而略微增大;③湖泊面积不变的前提下,形状指数过大影响水体的整体性,从而减弱湖泊的降温效应。研究结论对于加深对城市湖泊在降低城市热岛效应方面的认识,以及城市湖泊区域的...

Urban lake plays an important role in reducing the urban heat island effect. With the lake in the martyr park of Hunan Province as study object,we probed into the influences of lake area and lake shape index ( perimeter- to-area ratio) on the lake cooling effect through field measurement and CFD ( Computational Fluid Dynamics) simulation. Results show that: 1) Lake area is the major factor that affects the cooling effect of lake. The smaller lake area,the weaker the cooling effect. In the control area ( area for comparison with no lake), the me...