建立了数学模型 ,用数值模拟法分析了人体呼出的水蒸气对置换通风系统的影响 ,指出在送风量一定的情况下 ,置换通风系统温跃层的高度随湿源散湿量的增加而降低 ,并给出温跃层高度随散湿量变化的规律 The mathematical model was established and the influence of water vapor exhaled by the human body on the displacement ventilation system was analyzed by numerical simulation. It was pointed out that the height of the thermocline of the displacement ventilation system increased with the amount of wetted water dissipated while the amount of blowing air was constant Lower, and give the thermocline height with the law of the amount of scattered wet