Ground effect on rotorcraft unmanned aerial vehicles: A review

A Matus-Vargas, G Rodriguez-Gomez… - Intelligent Service …, 2021 - Springer
This article aims at collecting and discussing the results reached by the research community
regarding the study of the ground effect on small rotorcraft unmanned aerial vehicles …

Propeller ground effect in forward flight

J Cai, S Gunasekaran - AIAA Journal, 2023 - arc.aiaa.org
The study of the fixed-pitch small-scale propeller in-ground effect is extended to forward
flight conditions at different incidence angles of the propeller. Force-based experiments …

Effect of partial ground and partial ceiling on propeller performance

J Cai, S Gunasekaran, M Ol - Journal of Aircraft, 2023 - arc.aiaa.org
Finite extent flat obstacles behind a propeller (“partial ground”) and ahead of the propeller
(“partial ceiling”) were examined experimentally for a small-scale fixed-pitch propeller in …

Comparison of rotor hovering aerodynamic performance in free-surface and ground effects using numerical methods

M Zhang, W Duan, W Shao, J Liu - Physics of Fluids, 2024 - pubs.aip.org
The aerodynamic performance of the rotor hovering on the air–water free-surface, which is
significant for cross-medium unmanned aerial vehicles, is merely studied. In this study, a …

Propeller Ceiling Effect in Forward Flight

J Cai, S Gunasekaran - Journal of Aircraft, 2024 - arc.aiaa.org
The study extends the investigation of the fixed-pitch small-scale propeller in the ceiling
effect to forward flight conditions at different propeller incidence angles. Force-based …

Measuring Agricultural Spray Droplet Distirbutions in Propeller Wake: A Cautionary Tale

IM Tierney, S Gunasekaran, K Butz… - AIAA SCITECH 2023 …, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-0090. vid The effect of propeller
wake, nozzle locations, and the number of propellers on agricultural spray droplet …

Changes in Propeller Performance Due to Rotor and Ceiling Proximity in Forward Flight

J Cai - 2024 - rave.ohiolink.edu
With the increasing interest in electric vertical takeoff and landing air vehicles and small-
scale Unmanned Air Vehicles, many novel design concepts favor the fixed-pitch-propeller as …

[PDF][PDF] Propeller Ground and Ceiling Effect in Forward Flight

J Cai, S Gunasekaran - VFS 78th Annual Forum, 2022 - researchgate.net
The study of the fixed-pitch small-scale propeller in ground/ceiling effect is extended to
forward flight conditions. Forcebased experiment and smoke flow visualization is conducted …

In-Ground Effect Model for Rotor-Based Aerial Vehicles in Axial and Forward Flight

X He, K Leang - Available at SSRN 4855612 - papers.ssrn.com
This paper describes in-ground effect (IGE) models that incorporate the rotor advance ratio
and vehicle's climbing velocity to predict the IGE thrust variation in axial (vertical) and …

Investigating Ground Interactions of a Rotocraft Landing Vehicle on Titan

A Rozman - 2022 - stars.library.ucf.edu
The exploration of celestial bodies has recently advanced from rovers to rotorcraft. This
includes the recent flights of Mars Ingenuity and the upcoming Dragonfly mission to explore …