Ground Effect on the Thrust Performance of Staggered Rotor System

In this study, the thrust performance of a staggered rotor system in-ground effect (IGE) and out-of-ground effect (OGE) while considering the interaction on wake characteristics were investigated experimentally. A thorough comprehension of their performance holds significant importance for trajector...

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Bibliographic Details
Published in:Drones (Basel) 2024-04, Vol.8 (4), p.118
Main Authors: Zhu, He, Wei, Shaoxiong, Nie, Hong, Du, Yuhao, Wei, Xiaohui
Format: Article
Language:English
Subjects:
aerodynamic interference
Aircraft
Aircraft design
Altitude
Asymmetry
drones
Experiments
Flight characteristics
ground effect
Ground effect (aerodynamics)
Parameter identification
Remote control
Reynolds number
Rotor speed
Simulation
staggered rotor
Thrust
Trajectory planning
Velocity
Visualization
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Summary:In this study, the thrust performance of a staggered rotor system in-ground effect (IGE) and out-of-ground effect (OGE) while considering the interaction on wake characteristics were investigated experimentally. A thorough comprehension of their performance holds significant importance for trajectory planning, aircraft design, landing safety, and energy-efficient landings. The complex interactions within staggered rotor systems and the impact of ground effects make rotor distance and ground interactions critical factors influencing near-ground flight performance. The study investigated the influence and enhancements of rotor thrust performance through an examination of rotor speed, lateral distance, and altitude. Experimental tests were conducted on two small-scale rotor models to assess the effects of these parameters. These experiments compared the performance of staggered rotor systems with isolated rotors, analyzing the competition mechanism between the thrust loss caused by interference and the thrust gain of rotors IGE. Furthermore, emphasis was placed on analyzing the thrust gain issues exhibited by staggered rotor systems under the condition of H = 2R. Additionally, the analysis was focused on identifying prominent relative positions for thrust performance and parameters for improving thrust performance in ground effects in staggered rotor systems.
ISSN:2504-446X
2504-446X
DOI:10.3390/drones8040118