摘要
本研究选取城市室外辐射环境模拟软件Rayman和SOLWEIG,模拟了哈尔滨这一典型严寒地区城市在冬季条件不同建筑布局下的长、短波辐射通量密度及平均辐射温度,并将模拟结果与现场实测结果相对比,以分析不同的城市室外辐射计算模型在严寒地区城市冬季条件下的适用性能和差异。结果表明,Rayman模型计算的由上至下和实体表面发射的长波辐射与实测结果有较强的相关性,且在计算半围合布局空间内平均辐射温度方面具有优势;SOLWEIG模型模拟参数更为全面,能得到平均辐射温度可视化图形,除了"短波西",其短波模拟值与实测值均有较强的相关关系,且计算开敞区域内平均辐射温度方面精确度更高。2种模型对来自冰雪下垫面的长波辐射模拟更为准确。
In order to analyze the applicability and differences of urban outdoor radiant calculation models under winter conditions in severely cold region of China,Rayman and SOLWEIG were utilized to calculate the short-and long-wave radiant flux densities as well as the mean radiant temperature,and to compare modeled and measured data under different building layouts in Harbin,a typical city in the severely cold region.Results show that longwave radiation from top to bottom and solid surfaces calculated by the Rayman model are strongly correlated with measured results.What’s more,the Rayman model also has an advantage in calculating the mean radiant temperature in the spaces with semi-enclosed building layout.SOLWEIG model could export comprehensive radiant parameters and obtain visual distribution of the mean radiant temperature.Short-wave radiation modeled by SOLWEIG is strongly correlated with measured data,except that from west.And SOLWEIG had relatively high accuracy in calculating the mean radiant temperature in open areas.Both models proposed in this paper could calculate long-wave radiation from snow underlying surface in a more accurate way.
作者
杜晶
刘京
DU Jing;LIU Jing(School of Architecture,Harbin Institute of Technology,Harbin 150090,China;Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology,Ministry of Industry and Information Technology,Harbin 150090,China)
出处
《建筑科学》
CSCD
北大核心
2020年第2期8-18,共11页
Building Science
基金
国家自然科学基金重点项目“严寒地区城市微气候调节原理与设计方法研究”(51438005).
作者简介
杜晶(1993-),女,在读博士研究生;通讯作者:刘京(1972-),男,博士,教授,联系方式:liujinghit0@163.com
