An aircraft cabin environment is affected by many factors during flights. To investigate the impact of passenger behavior on indoor air quality, three passenger behaviors, adjusting the seatback, turns on the gasper and exhale, were studied separately. An aircraft cabin mockup was used to obtain experimental measurements. The air velocity and contaminant distribution are important considerations in the cabin. The results show that the longitudinal airflow is enhanced after the occupant adjustment of the seatback angle, and this increases the risk of longitudinal transmission of contaminants. The result of the present work implied that the middle passengers turn on the gasper, which can reduce the risk of infection for passengers near the sidewall of the cabin. The concentration of sources released by passengers' sinusoidal exhale is higher than constant release sources. The passenger behavior has a great influence on the surrounding flow field and the microenvironment of pollutant distribution.

飞机机舱环境在飞行过程中受许多因素影响。为了研究乘客行为对室内空气质量的影响，分别研究了三种乘客行为，即调节座椅靠背，打开加油器和呼气。飞机机舱模型用于获得实验测量值。空气速度和污染物分布是驾驶室中的重要考虑因素。结果表明，乘员调节座椅靠背角度后，纵向气流得到增强，这增加了污染物纵向传播的风险。当前工作的结果表明，中层乘客打开加油机，这可以降低靠近机舱侧壁的乘客被感染的风险。乘客释放的源的集中度 正弦呼气高于持续释放源。乘客行为对周围流场和污染物分布的微环境影响很大。