严寒地区城市内河与其周边住区微气候的交互影响研究

Microclimate Interaction Between Urban Inland River and its Surrounding Residential Areas in Severe Cold Regions

为研究严寒地区城市内河与其周边住区的交互影响,以及严寒城市内河建设的最优宽度,通过选取严寒地区典型城市哈尔滨市内河周边的住区与非临内河的参考住区在冬季典型气象日进行现场实测,定量分析内河周边的住区以及交互区的热环境差异。并通过数值模拟方法,分析不同内河宽度的优化效果。研究结果表明,就中高层围合式住区来说,内河周边中高层围合式住区比中高层围合式参考住区平均空气温度高0.13℃。就高层行列式住区来说,内河周边高层行列式住区比高层行列式参考住区平均空气温度高1.16℃。就交互区来说,中高层围合式交互区平均空气温度比高层行列式交互区平均空气温度高0.62℃。

In order to study the interaction between urban rivers and surrounding residential areas in severely cold regions,as well as to find the optimal width for inland river construction in severely cold cities,a residential area surrounded by the inland river and a reference residential area not surrounded by an inland river are selected in Harbin-a typical city in a severely cold region,then the field measurements are carried out on a typical meteorological day in winter to quantitatively analyze the thermal environment difference of the residential area around the inland river.A numerical simulation method is used to analyze the optimization effects of different inland river widths.The results show that,in the case of the enclosed mid-rise residential area,the area around the inland river is 0.13℃higher than the average air temperature of the enclosed mid-rise reference residential area.For the high-rise determinant residential area,the average air temperature around the river is 1.16℃higher than that of the high-rise reference building.In the case of the interaction areas,the average air temperature in the enclosed mid-rise interaction area is 0.62℃higher than that of the high-rise interaction area.