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,對不同尺寸的散流器風口、條縫風口送風方式下全封閉和不封閉4人臥鋪包廂的三維空氣流場和溫度場進行了數(shù)值計算,利用PMV(Predicted Mean Vote)和空氣齡(age of air)指標分析優(yōu)化各通風方式下車廂內(nèi)上、下鋪位人體的熱舒適性,討論不同工況下各送風方式的空調(diào)效果。