Based on the k-ε turbulence model,three dimension airflow fields and temperature fields in enclosed and open 4-men sleeping-berth compartments of railway cars are calculated numerically in the case of air supplying with different sizes of air diffusers and slotted outlets.
采用k-ε湍流模型,对不同尺寸的散流器风口、条缝风口送风方式下全封闭和不封闭4人卧铺包厢的三维空气流场和温度场进行了数值计算,利用PMV(Predicted Mean Vote)和空气龄(age of air)指标分析优化各通风方式下车厢内上、下铺位人体的热舒适性,讨论不同工况下各送风方式的空调效果。
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