离场阶段飞机尾流激光雷达探测方法研究  

Research on Lidar Detection Method of Aircraft Wake Turbulence in Departure Phase

作　　者：陈佳炀 Chen Jiayang(Civil Aviation Flight University of China,Guanghan,China)

机构地区：[1]中国民用航空飞行学院,四川广汉

出　　处：《科学技术创新》2024年第4期197-200,共4页Scientific and Technological Innovation

基　　金：近地阶段飞机尾流演化与风险控制关键技术(批准号:U1733203);民航局安全能力建设项目:大逆风条件下的进近尾流间隔缩减技术研究(项目编号:民航局合同(2020)170号);中国民用航空飞行学院校级青年基金项目(QJ2022-199)。

摘　　要：尾流是在飞机爬升或下降时形成的,它的特点是在飞机尾部形成一对涡旋,对于后方飞机可能导致下洗气流、颠簸和滚转等问题,不利于飞行安全。本文研究了激光雷达技术在离场阶段尾流探测中的应用,基于尾流涡旋模型和尾涡流场,分析激光雷达探测离场阶段飞机的扫描方式,并通过数值仿真和实例对比,验证了激光雷达探测方法对于离场阶段飞机尾流的探测的有效性。Wake turbulence is formed when the aircraft climbs or descends.It is characterized by the formation of a pair of vortices at the tail of the aircraft.For the rear aircraft,it may lead to downwash airflow,turbulence and rolling,which are not conducive to flight safety.In this paper,the application of Lidar technology in the wake turbulence detection in the departure phase is studied.Based on the wake vortex model and the wake vortex field,the scanning mode of the aircraft in the departure phase is analyzed.Through numerical simulation and example comparison,the effectiveness of the Lidar detection method for the detection of the aircraft wake turbulence in the departure phase is verified.

关 键 词：飞机尾流 激光雷达 尾流探测 离场阶段 

分 类 号：TN958.98[电子电信—信号与信息处理]