Experimental Characterization of Propeller Induced Flow (PIF) below a Multi-Rotor UAV

Alexander A. Flem; Mauro Ghirardelli; Stephan T. Kral; Etienne Cheynet; Tor Olav Kristensen; Joachim Reuder

doi:10.20944/preprints202401.0756.v1

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preprints.org > environmental and earth sciences > atmospheric science and meteorology > doi: 10.20944/preprints202401.0756.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Experimental Characterization of Propeller Induced Flow (PIF) below a Multi-Rotor UAV

Version 1 : Received: 9 January 2024 / Approved: 10 January 2024 / Online: 10 January 2024 (05:43:15 CET)

A peer-reviewed article of this Preprint also exists.

Flem, A.A.; Ghirardelli, M.; Kral, S.T.; Cheynet, E.; Kristensen, T.O.; Reuder, J. Experimental Characterization of Propeller-Induced Flow (PIF) below a Multi-Rotor UAV. Atmosphere 2024, 15, 242. Flem, A.A.; Ghirardelli, M.; Kral, S.T.; Cheynet, E.; Kristensen, T.O.; Reuder, J. Experimental Characterization of Propeller-Induced Flow (PIF) below a Multi-Rotor UAV. Atmosphere 2024, 15, 242.

Abstract

The availability of multi-rotor UAVs with lifting capacities of several kilograms, allows for a new paradigm in atmospheric measurement techniques, i.e. the integration of research-grade sonic anemometers for airborne turbulence measurements. With their ability to hover and move very slowly, this approach yields an unrevealed flexibility compared to mast-based sonic anemometers, for a wide range of boundary layer investigations that require an accurate characterization of the turbulent flow. For an optimized sensor placement, potential disturbances by the propeller-induced flow (PIF), as well as the potential impact of the sensor weight and angular momentum on the flight performance in the case of a boom-mounted sensor, have to be considered.

Keywords

UAS; UAV; drone; multi-rotor RPAS; propeller induced flow; sensor placement; sonic anemometer

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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