典型布局下的建筑室内自然通风

基于三维RNG k-ε湍流模的CFD数值模拟方法，对两种典型室内布局下的套室分别进行室内自然通风模拟研究，获得了一定风速下卧室、客厅等关键部位的风压、风速分布等流场情况；得到典型布局下的通风量。并对自然通风效果进行评价，结果表明建筑室内布局对室内的自然通风效果有一定的影响。隔墙会改变压力、速度的分布，从而影响室内通风；能形成穿堂风的布局是自然通风的理想布局。建筑设计师应设计合理的建筑室内布局，以提高自然通风效果，从而促进建筑节能。

INDOOR NATURAL VENTILATION IN TYPICAL LAYOUT

The indoor natural ventilation environment of the two typical residensial layouts was simulated by using CFD （Computational Fluid Dynamics） method based on RNG k-e turbulent model. The interior airflow velocity and pressure distribution on pivotal areas such as bedrooms and the parlour were obtained, and volume flow rate was analyzed as well. Natural ventilation effect was evaluated. Interior layout has an effect on natural ventilation. Indoor partition can change indoor pressure and air velocity, thus influence natural ventilation. The layout can produce cross-ventilation is the best layout for natural ventilation. Architects should design layouts favourable for natural ventilation so as to promote building energy efficiency.