期刊论文

Simulation Study on the Effect of Lake Factors on the Humidification of Urban Lakes Based on CFD: Take the Lake of Lieshi Park in Hunan as an Example

中文

生态与农村环境学报

1673-4831

2021

37

1

110-119

10.19741/j.issn.1673-4831.2020.0009

国家林业局“十三五”重点学科（风景园林学）项目（林人发[2016]21号）； 湖南省教育厅科学研究项目（13C1135）； 中南林业科技大学研究生科技创新基金（CX20192007）；

本校为第一机构

选取湖南烈士公园湖泊为研究对象,采用定点实测与计算流体动力学(computational fluid dynamics,CFD)模拟相结合的方法,以相对湿度和风速作为评价指标,重点研究湖泊因子(湖泊面积和湖泊形状指数)与夏季湖泊湿度效应之间的关系。结果表明: (1)受夏季主导风向影响,研究区不同区域整体相对湿度由大到小依次为下风向区域、垂直风向区域和上风向区域,在距湖泊周围1 500 m范围内增湿效应较显著; (2)湖泊增湿效应与湖泊面积指数呈正相关,分别与湖泊形状指数、距离指数呈负相关,其中,面积指数贡献值最大:湖泊面积减小为0时,下风向区域所受影响较大,相对湿度下降7.4~ 8.2百分点,中心湖泊区域相对湿度下降...

Taking the lakes in the Lieshi Park of Hunan Province as the research objects and relative humidity and wind speed as evaluation indicators, the relationship between lake factor (indexes of lake area and form) and the humidification effect of the lake in summer was studied by using field measurement in combination with computational fluid dynamics (CFD) simulation. The results indicate that (1) Under the influence of dominant wind direction in summer, the order of different regions of the study area was downwind, vertical wind and upwind succes...