气象与环境学报
氣象與環境學報
기상여배경학보
JOURNAL OF METEOROLOGY AND ENVIRONMENT
2015年
3期
56-62
,共7页
秦文翠%胡聃%李元征%郭振
秦文翠%鬍聃%李元徵%郭振
진문취%호담%리원정%곽진
ENVI-met模型%微气候%住宅区%数值模拟
ENVI-met模型%微氣候%住宅區%數值模擬
ENVI-met모형%미기후%주택구%수치모의
ENVI-met model%Microclimate%Residential area%Numerical simulation
基于三维微气候模拟软件ENVI-met,以北京典型住宅区为研究对象,建立实况及设有屋顶绿化两种场景下的三维数值模拟模型,对研究区的微气候特征进行模拟分析。结果表明:微气候ENVI-met模型经过多次参数校正后,模型模拟结果与实测结果较接近,能较好反应微尺度气候的分布特征;屋顶经过简单的绿化后具有较好的降温增湿效果,使研究区平均温度降低了2—3℃,相对湿度增加了2.7%,风速由0.32—2.70 m·s-1降低至0.40—1.11 m·s-1,整体下降了0.34 m·s-1。ENVI-met通过三维模型可有效地应用于微气候模拟评价中,对评估当地微气候设计和城市规划具有一定的应用性。
基于三維微氣候模擬軟件ENVI-met,以北京典型住宅區為研究對象,建立實況及設有屋頂綠化兩種場景下的三維數值模擬模型,對研究區的微氣候特徵進行模擬分析。結果錶明:微氣候ENVI-met模型經過多次參數校正後,模型模擬結果與實測結果較接近,能較好反應微呎度氣候的分佈特徵;屋頂經過簡單的綠化後具有較好的降溫增濕效果,使研究區平均溫度降低瞭2—3℃,相對濕度增加瞭2.7%,風速由0.32—2.70 m·s-1降低至0.40—1.11 m·s-1,整體下降瞭0.34 m·s-1。ENVI-met通過三維模型可有效地應用于微氣候模擬評價中,對評估噹地微氣候設計和城市規劃具有一定的應用性。
기우삼유미기후모의연건ENVI-met,이북경전형주택구위연구대상,건립실황급설유옥정녹화량충장경하적삼유수치모의모형,대연구구적미기후특정진행모의분석。결과표명:미기후ENVI-met모형경과다차삼수교정후,모형모의결과여실측결과교접근,능교호반응미척도기후적분포특정;옥정경과간단적녹화후구유교호적강온증습효과,사연구구평균온도강저료2—3℃,상대습도증가료2.7%,풍속유0.32—2.70 m·s-1강저지0.40—1.11 m·s-1,정체하강료0.34 m·s-1。ENVI-met통과삼유모형가유효지응용우미기후모의평개중,대평고당지미기후설계화성시규화구유일정적응용성。
Based on an ENVI-met three-dimensional microclimate model,a numerical simulation model in a typical residential area of Beijing under the actual situation and roof greening conditions was established and microclimate characteristics were simulated.The results show that the simulated value is similar to the observed one after multi-ple parameter calibration for the ENVI-met model,and the model could reflect the micro-scale climate distribution characteristics.Roof greening significantly decreases temperature and increases humidity.Mean temperature in the study area decreases by 2-3 ℃ after roof greening;relative humidity increases by 2 .7%;wind speed falls by 0.34 m·s-1 ,and its range decreases from 0.40-1 .1 1 m·s-1 to 0.32-2.70 m·s-1 .The ENVI-met model could be used in the microclimate simulation and assessment by an effective three-dimensional model,which could provide scientific information for the local microclimate design and urban planning.