民用飞机客舱CO_(2)分布特性分析  

Analysis of CO_(2) distribution characteristics in cabin of civil aircraft

作　　者：高经诚 陈维建[1] 胡万俊 冯诗愚[1] 刘豪正 GAO Jingcheng;CHEN Weijian;HU Wanjun;FENG Shiyu;LIU Haozheng(School of Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Quality Management Department of Sichuan Fanhua Aviation Instrument Electric Appliance Co.,Ltd.,Chengdu 610599,China)

机构地区：[1]南京航空航天大学航空学院,南京210016 [2]四川泛华航空仪表电器有限公司质量管理部,成都610599

出　　处：《北京航空航天大学学报》2023年第9期2510-2517,共8页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(U1833121);中央高校基本科研业务费专项资金;江苏高校优势学科建设工程;南京航空航天大学研究生科研与实践创新计划(xcxjh20210108,xcxjh20220102)。

摘　　要：为保证乘客舒适环境与电子设备等正常工作,采用计算流体力学(CFD)方法,对民用飞机座舱内流场进行模拟,通过改变回风和新风温度、巡航高度及回风比,得到不同工况下舱内CO_(2)体积分数、温度场及速度场分布,并与已有数据对比,验证了计算模型的正确性。研究结果显示:地面标准天及巡航状态舱内流场基本符合要求,冬天供风50℃及回风比0.5时,舱内部分区域温度较高,且CO_(2)体积分数升高并接近标准值,可根据实际需要确定环控系统方案。The interior of civil aircraft cockpit is relatively closed,the air circulation is not smooth,the personnel density is large,and there are organic heat sources such as personnel and electronic equipment.It is essential to have a firm grasp of the flight envelope’s CO_(2) concentration,temperature distribution,and air velocity in order to certify civil aircraft as airworthy.The research introduced in this paper uses the computational fluid dynamics(CFD)method to simulate the flow field in the civil aircraft cockpit.The distribution of CO_(2) concentration,temperature field,and velocity field in the cockpit under various operating conditions is determined by varying the return air and fresh air temperatures,cruise altitude,and return air ratio.Compared with the existing literature data,the correctness of the calculation model is verified.The research results show that the flow field in the cabin in the ground standard day and cruise state basically meets the requirements.When the air supply is 50℃and the return air ratio is 0.5 in winter,the temperature in some areas of the cabin is higher,and the CO_(2) concentration increases and approaches the standard value.The environmental control system scheme can be determined according to the actual needs.

关 键 词：飞机座舱 CO_(2) 计算流体力学 数值模拟 民机适航 

分 类 号：V243[航空宇航科学与技术—飞行器设计]