Effect of gust width on flat-plate response in large transverse gust

C Badrya, H Biler, AR Jones, JD Baeder - AIAA Journal, 2021 - arc.aiaa.org
The split velocity method was applied to study the response of a finite flat-plate wing with an
aspect ratio of four encountering a large transverse gust with various gust widths. The gust is …

Approach for aerodynamic gust load alleviation by means of spanwise-segmented flaps

J Ullah, T Lutz, L Klug, R Radespiel, J Wild… - Journal of Aircraft, 2023 - arc.aiaa.org
Active gust load alleviation techniques exhibit a high potential in significantly reducing the
transient gust loads on aircraft. In this work the aerodynamic potential of trailing-edge flaps …

Nonlinear aeroelastic analysis of airfoil section under stall flutter oscillations and gust loads

LGP Dos Santos, FD Marques - Journal of Fluids and Structures, 2021 - Elsevier
As the desire for more flexible aircraft structures increases, so does the need to incorporate
the intrinsic nonlinearities in their aeroelastic analyses. In that manner, it becomes essential …

Aerodynamic damping investigations of light dynamic stall on a pitching airfoil via modal analysis

W Mallik, DE Raveh - Journal of Fluids and Structures, 2020 - Elsevier
This study presents an investigation of the aerodynamic damping of light dynamic stall
phenomena on a pitching NACA 0012 airfoil via Dynamic Modal Decomposition (DMD) and …

Gust response computations with control surface freeplay using random input describing functions

MA Padmanabhan, EH Dowell - AIAA Journal, 2020 - arc.aiaa.org
An analytical and computational investigation of the effect of control surface freeplay on
aeroelastic behavior, including random gust response and limit cycle oscillations (LCO), is …

Aerodynamic Nonlinearity Effects on Flight Dynamics of a Very Flexible Flying Wing

LGP dos Santos, CES Cesnik, FD Marques - AIAA Journal, 2024 - arc.aiaa.org
High-aspect-ratio (AR) wings are the prominent feature of very flexible aircraft, and greater
AR designs are being explored for enhanced flight efficiency in civil aviation. However, the …

Kriging-based aeroelastic gust response analysis at high angles of attack

W Mallik, DE Raveh - AIAA Journal, 2020 - arc.aiaa.org
This paper presents a kriging-based methodology for analyzing aeroelastic gust responses
at high angles of attack. Linear analysis becomes inaccurate due to the flow separation at …

Effects of gust on the aerodynamics of multi-rotors

S Narayanan, B Govindarajan - Physics of Fluids, 2024 - pubs.aip.org
Understanding the aerodynamics of multi-rotor systems under temporally varying discrete
gusts is the focus of this work. Axial and edgewise 1-minus-cosine profiles of varying …

Numerical Simulations on Unsteady Nonlinear Transonic Airfoil Flow

D Friedewald - Aerospace, 2020 - mdpi.com
Large-amplitude excitations need to be considered for gust load analyses of transport
aircraft in cruise flight conditions. Nonlinear amplitude effects in transonic flow are, however …

Computationally efficient gust load analysis at high angles of attack

W Mallik, DE Raveh - AIAA Scitech 2019 Forum, 2019 - arc.aiaa.org
In recent years, there has been a growing interest in unmanned aerial vehicle (UAV)
configurations that fly at low airspeed [1–4]. It was observed that atmospheric gusts are …