On the Near-Wake of a Ground-Effect Diffuser with Passive Flow Control
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Automotive Technology"
DOI: 10.1007/s12239-019-0002-2
Abstract: A ground-effect diffuser is an upwardly-inclined section of an automobile’s underbody which increases aerodynamic performance by generating downforce. To understand the diffuser flow physics (force behaviour, surface and offsurface flow features), we established the near-wake… read more here.
Keywords: near wake; geometry; diffuser; flow ... See more keywords
A vortex pair in ground effect, dynamics and optimal control
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.1002
Abstract: The dynamics and control of a vortex pair in ground effect are investigated in a planar, incompressible and laminar setting. The evolution of the vortices obtained numerically shows vortex rebound as a consequence of the… read more here.
Keywords: vortex pair; control; effect; wall ... See more keywords
Effect of yaw angle on aerodynamics of square inclined flat plates in ground effect
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Fluids"
DOI: 10.1063/5.0151616
Abstract: Aerodynamics of finite-span inclined square flat plates is experimentally investigated at a chord-based Reynolds number of 50 000 in ground effect. The minimum ground height is varied between gap ratios of 0.1 to 1.0 in chord… read more here.
Keywords: effect; ground effect; flat plates; aerodynamics ... See more keywords
Analysis of Ground Effect for Small-Scale UAVs in Forward Flight
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Robotics and Automation Letters"
DOI: 10.1109/lra.2019.2929993
Abstract: The letter investigates how the behavior of small-scale unmanned aerial vehicles (UAVs) is influenced by the system's close proximity to the ground/rigid surfaces both at hover and in forward flight. We perform an extensive experimental… read more here.
Keywords: ground; small scale; forward flight; ground effect ... See more keywords
Safety Control for Quadrotor UAV Against Ground Effect and Blade Damage
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3140494
Abstract: This article proposes a safety control scheme for quadrotor unmanned aerial vehicle (UAV) to counteract ground effect and blade damage. The impacts of ground effect and blade damage are quantitatively analyzed in the established model.… read more here.
Keywords: effect blade; ground effect; safety control; control ... See more keywords
Spatial Diversity 24-GHz FMCW Radar With Ground Effect Compensation for Automotive Applications
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2016.2565608
Abstract: In automotive radar applications, a realistic road surface can cause multipath reflection, degrade the received power, and reduce detection probability. This paper proposes a one-transmitter–two-receiver (1T2R) 24-GHz frequency-modulation continuous-wave (FMCW) radar architecture with spatial diversity… read more here.
Keywords: fmcw radar; radar; effect; ground effect ... See more keywords
Characterization of the Aerodynamic Ground Effect and Its Influence in Multirotor Control
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Aerospace Engineering"
DOI: 10.1155/2017/1823056
Abstract: This paper analyzes the ground effect in multirotors, that is, the change in the thrust generated by the rotors when flying close to the ground due to the interaction of the rotor airflow with the… read more here.
Keywords: ground; effect; ground effect; influence ... See more keywords
On the origin of the ground effect
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Mechanical Engineering Education"
DOI: 10.1177/03064190231174438
Abstract: The ground effect is well known to pilots and aerodynamicists alike. However, the current explanations found in undergraduate (and pilot-focused) textbooks can be inconsistent, often attributing the phenomena to the interaction between tip vortices at… read more here.
Keywords: streamline; ground effect; ground; panel ... See more keywords
Aerodynamic analysis and control for a novel coaxial ducted fan aerial robot in ground effect
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Advanced Robotic Systems"
DOI: 10.1177/1729881420953026
Abstract: Modeling and control for a novel coaxial ducted fan aerial robot in-ground-effect is presented in this article. Based on experiments using the ducted fan bench test, the fitting curve of the ground effect thrust of… read more here.
Keywords: ground; control; fan aerial; ground effect ... See more keywords
Vortical Sheet Behavior in the Wake of a Rotor in Ground Effect
Sign Up to like & getrecommendations! Published in 2017 at "AIAA Journal"
DOI: 10.2514/1.j054498
Abstract: Particle image velocimetry measurements with high spatial resolution were conducted on a hovering two-bladed rotor system operating in ground effect above a planar surface. The objective was to gai... read more here.
Keywords: ground effect; vortical sheet; rotor; sheet behavior ... See more keywords
Quasi-Steady In-Ground-Effect Model for Single and Multirotor Aerial Vehicles
Sign Up to like & getrecommendations! Published in 2020 at "AIAA Journal"
DOI: 10.2514/1.j059223
Abstract: This Paper presents a new quasi-steady in-ground effect (IGE) model for small multirotor aerial vehicles such as quadcopter unmanned aerial vehicles. The model offers three major advances to the st... read more here.
Keywords: aerial vehicles; model; ground effect; steady ground ... See more keywords