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Drones, Volume 6, Issue 5
May 2022 - 36 articles
Cover Story: As multi-rotors continue to be used in more applications, understanding their wake characteristics is necessary. The wake from multi-rotors can adversely affect in situ sensor readings in applications such as atmospheric sampling and particulate or emission monitoring. In this study, experimental investigations are used to explore the wake propagation and characteristics of a multi-rotor unmanned air vehicle (UAV) in forward flight. Qualitative smoke visualization is first used to gain a qualitative understanding of wake characteristics above and below the body of the multi-rotor UAV, which is used as guidance for quantitative particle image velocimetry (PIV) experiments and which better resolves the region in the vicinity of the multi-rotor UAV body. This study concludes that proximity effects are reduced as the advance ratio increases. View this paper
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Drones - ISSN 2504-446X