西部人居环境学刊2023，Vol.38Issue(6)：15-21,7.DOI:10.13791/j.cnki.hsfwest.20230603
基于微气候模拟的城市综合公园活动空间热舒适评价研究
Thermal Comfort Evaluation of Activity Space in Urban Comprehensive Parks Based on Microclimate Simulation:A Case Study of Wanliutang Park in Shenyang City
摘要
Abstract
With the advancement of urbanization,urban functions are increasingly complex and urban heat island effect is intensifying.The contradiction between the diversified needs of citizens for activity space and the simple development of urban green space functions is becoming increasingly prominent.In the past few decades,the acceleration of urbanization and global warming have led to the intensification of urban heat island effect.International cities have put forward relevant concepts and coping strategies for high temperature hazards from the aspects of early warning,monitoring,prevention and control,policy and design practice.The thermal comfort of urban green space microclimate environment is an important factor affecting people's outdoor activities,and comprehensive park is a concentrated choice for citizens to carry out different activities in urban green space.In this context,this paper combineds questionnaire survey,field measurement and microclimate simulation to study the thermal comfort changes of different activity types in Wanliutang Park,Shenyang in one day.It is found that different types of activity spaces will produce different thermal perception differences due to the differences in the activity mode and environment of the users.In order to further explore the all-day variation of thermal comfort values in different spaces,this paper fits the measured microclimate data and simulated data based on MATLAB,and finds the optimal function matching based on the minimum sum of squared errors,so as to obtain the minimum error data between the measured values and simulated values.Finally,more accurate thermal comfort evaluation results of various activity spaces are conducted.Finally,the physiological equivalent temperature(PET)grade and neutral temperature range of the four types of spaces are determined through the study,and the neutral PET value of each space is calculated as 23.93℃,20.67℃,23.68℃,23.11℃.Based on this,the thermal comfort of various spaces is evaluated.In this study,the thermal comfort rating of different activity spaces in Wanliutang,Shenyang,is more targeted,which can better help users assess the environment,clarify the thermal environment benchmark of various activity spaces in the comprehensive park,and provide references for the improvement of residents'outdoor activities and comfort.The research results are of great significance to the landscape design of urban parks,and can help urban planners and landscape designers scientifically improve the outdoor thermal environment and thermal comfort in the future urban construction.In the future outdoor thermal comfort research,it should make up for the shortcomings of this study,understand the changes of human thermal sensation more comprehensively and accurately,and provide more comfortable and healthy urban green space for urban residents.关键词
城市公园/小气候/ENVI-met/热舒适Key words
Urban Parks/Microclimate/ENVI-met/Thermal Comfort分类
建筑与水利引用本文复制引用
董玉宽,张哲,孙诗溢,王秋实,刘骁..基于微气候模拟的城市综合公园活动空间热舒适评价研究[J].西部人居环境学刊,2023,38(6):15-21,7.基金项目
国家自然科学基金项目(52178045、52108011) （52178045、52108011）
辽宁省教育厅高等学校基本科研项目(LJKZ0555) （LJKZ0555）
中央高校基本科研业务费专项资金资助(QNMS202211) （QNMS202211）
广东省哲学社会科学规划2022年度项目(GD22XGL02) （GD22XGL02）
广州市哲学社科规划2022年度课题(2022GZQN14) （2022GZQN14）
广东省基础与应用基础研究基金(202341515011137) （202341515011137）
