民机客舱颗粒污染物传播规律数值仿真及分析

采用数值模拟方法计算三种送风方式下突发性颗粒污染物在民机客舱内的传播规律，比较三种送风系统各自的优点及不足。结果表明：天花板送风系统能够有效地降低客舱内的温度，但乘客会有吹风感，且颗粒污染物的传播范围广；地板送风客舱内的温度分布不均匀，不易于颗粒污染物的传播，但污染物浓度高于其他两种送风方式；置换送风方式不易于颗粒污染物的传播，且污染物浓度值低，传播范围小，乘客没有吹风感，但不能有效地降低客舱内的温度。

Numerical Simulation of Particulate Pollutants Transport in an Aircraft Cabin

Using the FLUENT software to simulate the propagation law of particulate pollutants in three air supply modes in an aircraft cabin, and comparing the advantages and disadvantages of the three air supply modes. The results show that： the ceiling air supply can effectively low indoor temperature, but the pas- sengers will feel draft sensation and the spread of particulate pollutants is more far than others systems. The temperature of underiloor air supply is not evenly distributed, it is not easy for particulate pollutants to spread, but the coneenration of particulate pollutants is higher than others systems. Replacement air supply also not easy for particulate pollutants to spread and the concenration of particulate pollutants is lower than others systems,and the passengers will not feel draft sensaton,but it can＇t effectively low in- door temperature.