Abstract

In order to study the wake vortices of landing aircraft, we carried out an experiment on the airfield of Tolmachevo Airport in 2018 using Stream Line lidar, an AMK-03 sonic anemometer, and an MTP-5 temperature profiler. The limits of applicability of the method of radial velocity in estimation of wake vortex parameters from lidar measurements were determined for different aircraft types and wind turbulence strength. The analysis of the experimental results makes it possible to identify features of the spatial dynamics and evolution of aircraft wake vortices under different states of the surface air layer. In particular, we found that the lifetime of a vortex generated behind a large MD-11F aircraft on landing can reach 4 min in the case of low average crosswind speed and moderate wind turbulence.

中文翻译：

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2018年托尔马切沃机场飞机尾涡的实验研究

摘要

为了研究着陆机的尾流涡流，我们于2018年在托尔马切沃机场的飞机场上使用Stream Line激光雷达，AMK-03声波风速计和MTP-5温度廓线仪进行了实验。针对不同的飞机类型和风湍流强度，确定了径向速度方法在根据激光雷达测量估算尾流涡流参数时的适用范围。对实验结果的分析使得有可能识别出在表面空气层的不同状态下飞机尾流涡流的空间动力学特征和演化特征。尤其是，我们发现，在平均侧风速度低且风速中等的情况下，大型MD-11F飞机着陆后产生的涡流的寿命可以达到4分钟。