民用飞机个人通风送风温度对人体舒适性的影响

Impact of individual ventilation temperature on passenger comfort of commercial aircraft

通过对某真实客机座舱进行建模,使用计算流体力学(CFD)的方法计算出不同个人通风送风温度下座舱内的温度场和流场分布。然后提取乘客头部区域温度与试验结果进行对比,验证模拟的可信度。最后结合基于人体平均皮肤温度的热舒适评价方法,对不同个人通风送风温度情况下的乘客舒适性进行研究。结果表明:不同个人通风送风温度对乘客头部区域温度影响较小,随着个人通风送风温度从7℃上升到14℃,乘客头部区域温度变化不超过0.8℃。不同个人通风送风温度对乘客平均皮肤温度以及热舒适性的影响较小,随着个人通风送风温度从7℃上升到14℃,目标乘客平均皮肤温度上升0.33℃。

This investigation builds a 3D model of one real commercial aircraft cabin and uses the Computational Fluid Dynamics(CFD)method to calculate the distribution of the temperature and the velocity in cabin under different individual ventilation temperatures.To verify the reliability of the simulation,this paper compares the simulated and measured temperatures around the position of passenger head.Finally,referring to the average skin temperature of human,this research studies the comfort of passengers under different individual ventilation temperatures.The results show that when the individual ventilation temperature changes,the temperature around the passenger head does not vary much.When the individual ventilation temperature increases from 7℃to 14℃,the temperature around the head of passenger varies less than 0.8℃.Different individual ventilation temperatures mildly affect the average skin temperature and thermal comfort of passengers.When the individual ventilation temperature increases from 7℃to 14℃,the average skin temperature of the target passenger increases by 0.33℃.