中文摘要：

应用已经过风洞实验数据验证的城市风环境模拟软件MISKAM对三维城市微气候软件ENVI-met预测室外风环境的能力进行了检验,分析工况包括孤立建筑、单排树以及街区,分析内容为空气流场和建筑表面风压。比较结果显示：ENVI-met模拟的流场和风压空间分布整体特征与MISKAM一致,但在局部区域（例如建筑背风侧）存在一定差异,两者计算的风速风压值也存在一定差异。研究对产生差异的可能原因进行了初步分析。通过模型对比初步证明了ENVI-met预测室外风环境的合理性,为进一步深入验证ENVI-met提供了参考。

英文摘要：

The 3D urban microclimate model ENVI-met is examined with the validated numerical flow model MISKAM by focusing on outdoor wind environment.Three test cases are set for model comparison,including an isolated building,a single row of trees,and a city block.The comparing results show that the flow fields and the wind pressure distributions predicted by ENVI-met are generally consistent with those of MISKAM.However,some differences in wind speed,wind pressure,and the local flow field（e.g.the leeward side of buildings） between the two models are observed.The possible reasons for these differences are discussed.This study shows that the ENVI-met model can reasonably simulate outdoor wind environment,and provide useful information for further validation of ENVI-met.