机动车尾气排放不断增加以及城市通风能力降低,常导致城市街谷内的空气污染.城市街谷大气环境主要研究方法包括外场观测、实验室物理模拟和数值计算.外场观测和物理模拟可以考察街谷内污染物的传输扩散规律并对数值模式进行检验,另外,复杂的数值模式则可对城市冠层内大气扩散问题进行详细模拟,数值模拟和外场观测及物理模拟相配合,可用于环境质量评价、污染控制决策及交通规划.重点介绍了近十年内城市街谷大气环境研究的主要成果.国家重点基础研究发展计划(973计划)中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)01146-1534
采用改进的ARPS动力模式模拟城市街谷流场,应用动力和能量平衡耦合模式模拟街谷温度场日变化过程.该动力模式能够模拟建筑物周围典型流场,包括街谷涡旋及背风区尾流涡旋等.耦合模式能够模拟街谷各接收面能量收...
文章介绍一种用于模拟街谷流场和温度场的动力学模式和热力学模式.应用动力模式模拟了方柱体塔楼和圆柱体塔楼形成的流场,应用动力和热力模式模拟了街谷中流场和温度场的日变化过程.计算实例表明,上述模式可用于城...
Tropospheric ozone is a secondary air pollutant produced in the presence of nitrogen oxides (NOx), v...
街道峡谷中机动车排放污染物的扩散取决于屋顶风向和风速,并受街道峡谷宽高比、峡谷两侧街区建筑物高度的对称性和高度分布及街区形状等因素的影响.街道峡谷宽高比接近1时,递升型峡谷以及宽阔街道有利于污染物的扩...
应用雷诺应力湍流模型,模拟了不同高度比的城市街道峡谷的气流场.结果表明:峡谷的对称性对其内部气流场有显著影响.前高后低型峡谷下部为逆时针旋涡,上部为顺时针旋涡,峡谷越深,流场发展的越充分;峡谷内部墙面...
High pollution levels often occurred in urban street canyon due to the increased traffic emissions a...
As a result of rapid urbanization in numerous cities around the world, the demand for transportation...
A street canyon is a typical urban configuration with surrounding buildings along the street, where ...
The objective of this study is to numerically study flow and traffic exhaust dispersion in urban str...
[[abstract]]Carbon monoxide distribution in street canyons under various geometry's, atmospheric sta...
采用北京大学三维复杂地形中尺度数值模式,利用Landsat-TM卫星影像图和"北京海淀区北部地区总体规划--用地规划图",分别模拟了北京海淀区北部规划完成后和目前情...
High concentrations of ozone (O3) is a major air problem in urban areas, which creates a serious thr...
xxii, 273 leaves : illustrations (some color) ; 30 cmPolyU Library Call No.: [THS] LG51 .H577P BSE 2...
[[abstract]]Air pollution in big city areas resulting from exhaust emissions is a major urban proble...
This study focused on heavy gas dispersion under the terrain conditions of street canyons. The effec...
采用改进的ARPS动力模式模拟城市街谷流场,应用动力和能量平衡耦合模式模拟街谷温度场日变化过程.该动力模式能够模拟建筑物周围典型流场,包括街谷涡旋及背风区尾流涡旋等.耦合模式能够模拟街谷各接收面能量收...
文章介绍一种用于模拟街谷流场和温度场的动力学模式和热力学模式.应用动力模式模拟了方柱体塔楼和圆柱体塔楼形成的流场,应用动力和热力模式模拟了街谷中流场和温度场的日变化过程.计算实例表明,上述模式可用于城...
Tropospheric ozone is a secondary air pollutant produced in the presence of nitrogen oxides (NOx), v...
街道峡谷中机动车排放污染物的扩散取决于屋顶风向和风速,并受街道峡谷宽高比、峡谷两侧街区建筑物高度的对称性和高度分布及街区形状等因素的影响.街道峡谷宽高比接近1时,递升型峡谷以及宽阔街道有利于污染物的扩...
应用雷诺应力湍流模型,模拟了不同高度比的城市街道峡谷的气流场.结果表明:峡谷的对称性对其内部气流场有显著影响.前高后低型峡谷下部为逆时针旋涡,上部为顺时针旋涡,峡谷越深,流场发展的越充分;峡谷内部墙面...
High pollution levels often occurred in urban street canyon due to the increased traffic emissions a...
As a result of rapid urbanization in numerous cities around the world, the demand for transportation...
A street canyon is a typical urban configuration with surrounding buildings along the street, where ...
The objective of this study is to numerically study flow and traffic exhaust dispersion in urban str...
[[abstract]]Carbon monoxide distribution in street canyons under various geometry's, atmospheric sta...
采用北京大学三维复杂地形中尺度数值模式,利用Landsat-TM卫星影像图和"北京海淀区北部地区总体规划--用地规划图",分别模拟了北京海淀区北部规划完成后和目前情...
High concentrations of ozone (O3) is a major air problem in urban areas, which creates a serious thr...
xxii, 273 leaves : illustrations (some color) ; 30 cmPolyU Library Call No.: [THS] LG51 .H577P BSE 2...
[[abstract]]Air pollution in big city areas resulting from exhaust emissions is a major urban proble...
This study focused on heavy gas dispersion under the terrain conditions of street canyons. The effec...
采用改进的ARPS动力模式模拟城市街谷流场,应用动力和能量平衡耦合模式模拟街谷温度场日变化过程.该动力模式能够模拟建筑物周围典型流场,包括街谷涡旋及背风区尾流涡旋等.耦合模式能够模拟街谷各接收面能量收...
文章介绍一种用于模拟街谷流场和温度场的动力学模式和热力学模式.应用动力模式模拟了方柱体塔楼和圆柱体塔楼形成的流场,应用动力和热力模式模拟了街谷中流场和温度场的日变化过程.计算实例表明,上述模式可用于城...
Tropospheric ozone is a secondary air pollutant produced in the presence of nitrogen oxides (NOx), v...
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