In this work, previous studies focused on wake propagation and flow development of multi-rotor drones are consolidated and discussed. An in depth understanding of wake propagation is critical to accurately predict as it can have adverse effects on vehicle stability and can contaminate in-situ sensor measurements that are placed on the vehicle, such as those which facilitate autonomous maneuvering or atmospheric sampling. Studies that have focused on this issue or similar issues have primarily focused on proximity effects include Computational Fluid Dynamics simulations of wake propagation and multi-rotor flows, and experimental studies using flow visualization and Particle Image Velocimetry to capture multi-rotor wake and flow development. Although some preliminary investigations have been carried out, a comprehensive study has not been conducted that includes research on multi-rotors in vertical flight modes (ascending and descending) which are unique multi-rotor capabilities that are often utilized. An in-depth study of multi-rotor wake development is needed to provide insight into the design and optimization of multi-rotors for various applications, including applications in confined environments or for other applications where the wake propagation significantly impacts mission success.

在这项工作中，巩固和讨论了以前关于多旋翼无人机的尾流传播和流动发展的研究。深入了解尾流传播对于准确预测至关重要，因为它可能对车辆稳定性产生不利影响，并可能污染放置在车辆上的原位传感器测量，例如促进自主操纵或大气采样的那些。关注这个问题或类似问题的研究主要关注邻近效应，包括尾流传播和多转子流动的计算流体动力学模拟，以及使用流动可视化和粒子图像测速来捕捉多转子尾流和流动发展的实验研究。虽然已经进行了一些初步调查，尚未进行全面的研究，其中包括对垂直飞行模式（上升和下降）多旋翼的研究，这是经常使用的独特多旋翼功能。需要对多旋翼尾流开发进行深入研究，以深入了解用于各种应用的多旋翼设计和优化，包括密闭环境中的应用或尾流传播显着影响任务成功的其他应用。