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中文摘要：
本文主要结合某地下车库通风系统某一天的实测数据，根据地下车库室内环境的特殊性建立数学模型，介绍采用计算流体力学软件Fluent对地下车库通风时的气流组织作数值模拟，对CO浓度场作进一步的模拟计算，并和实测数据进行对比，发现数值模拟所得结果和该地下车库的实测数据较为吻合，从而说明本文提出的用CFD方法来模拟地下车库空间内污染物平均浓度的正确性，为预测地下车库空间内污染物平均浓度，实现通风系统的实时控制提供了一种较为简便、形象的方法。
英文摘要：
Based on the practical surveys of the ventilation system in underground parking garage and accorded to the particular air environment of the garage, the air distribution is numerically simulated by software Fluent. The simulated data nearly inosculate with the practical surveys. Furthermore, CO concentration field is simulated. The average concentration of the pollutants which is simulated by computational fluid dynamics is also congruous with the practical data, and it indicates the method is correct. A simple and visualized method is supplied for predicting the average concentration of the pollutants and in underground parking garage and controlling the ventilation system at real time.
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