Physics of gust response mitigation in open-loop pitching manoeuvres

G Sedky, A Gementzopoulos… - Journal of Fluid …, 2022 - cambridge.org
This paper experimentally investigates the flow field development and unsteady loading of
three force-mitigating pitch manoeuvres during a transverse gust encounter. The …

[HTML][HTML] Gust mitigation with an oscillating airfoil at low Reynolds number

N Poudel, M Yu, JT Hrynuk - Physics of Fluids, 2021 - pubs.aip.org
The encounter between micro-aerial vehicles (MAVs) and gusts is often detrimental and
mitigating the effects of the gust is important for operating MAVs under severe environmental …

Experimental investigation of transverse and vortex gust encounters at low Reynolds numbers

H Biler, G Sedky, AR Jones, M Saritas, O Cetiner - AIAA Journal, 2021 - arc.aiaa.org
This paper aims to study the lift response of transverse and vortex gust encounters. A sine-
squared transverse gust was created in a water towing tank using a water jet, whereas a …

Gust encounters of rigid wings: Taming the parameter space

AR Jones - Physical Review Fluids, 2020 - APS
One of the primary challenges in the study of gust encounters lies in isolating, defining, and
parametrizing a specific problem in a highly unsteady, three-dimensional, and multiscale …

Overview of unsteady aerodynamic response of rigid wings in gust encounters

AR Jones, O Cetiner - AIAA journal, 2021 - arc.aiaa.org
Recent interest in flight through gusty winds has given rise to a large body of work on
discrete large-amplitude gust encounters where the magnitude of the flow disturbance is …

Deep reinforcement learning of airfoil pitch control in a highly disturbed environment using partial observations

D Beckers, JD Eldredge - Physical Review Fluids, 2024 - APS
This study explores the application of deep reinforcement learning (RL) to design an airfoil
pitch controller capable of minimizing lift variations in randomly disturbed flows. The …

Iterative maneuver optimization in a transverse gust encounter

X Xu, A Gementzopoulos, G Sedky, AR Jones… - AIAA Journal, 2023 - arc.aiaa.org
This paper presents a framework based on either iterative simulation or iterative
experimentation for constructing an optimal, open-loop maneuver to regulate the …

Experimental comparison of a sinusoidal and trapezoidal transverse gust

G Sedky, H Biler, AR Jones - AIAA Journal, 2022 - arc.aiaa.org
UNSTEADY flow conditions experienced in wing–gust encoun-ters have been the focus of
many experimental and computational studies [1–6]. Wing–gust encounters have been …

Design of optimal wing maneuvers in a transverse gust encounter through iterated simulation or experiment

X Xu, A Gementzopoulos, G Sedky, AR Jones… - … and Computational Fluid …, 2023 - Springer
Wing–gust encounters cause harmful lift transients that can be mitigated through
maneuvering of the wing. This paper presents a method to generate an open-loop (ie …

Transverse gust generation in a wind tunnel: a suction-driven approach

X He, DR Williams, STM Dawson - Experiments in Fluids, 2022 - Springer
Abstract The Andrew Fejer Unsteady Wind Tunnel was modified to add a suction duct on top
of the test section to generate a vertical velocity component (cross flow). The suction …