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城市主城区立体模型的构建与风环境模拟以广州(5)
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摘要:区域风环境模拟结果的验证,特别是大尺度空间范围的验证一直是风环境领域研究的难点。目前城市尺度风环境的探讨主要通过数值模拟、物理风洞模拟、
区域风环境模拟结果的验证,特别是大尺度空间范围的验证一直是风环境领域研究的难点。目前城市尺度风环境的探讨主要通过数值模拟、物理风洞模拟、ArcGIS平台以及野外实地观测等技术手段。本文所研究的范围有462 km2,地面定点与自动气象站点的数量少,其风向与风速数据不足以表达区域内部的差异。另外无论是物理还是数值模拟,所构建的模型均进行了概括简化,模拟结果与实测数据相互之间的对比还存在尺度的转换问题。尽管如此,为了提高模拟结果的说服力与应用价值,不同研究方法结果间的相互对比,将始终是课题努力的方向。
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