Three-dimensional effects on the aerodynamic performance of flapping wings in tandem configuration

G Arranz, O Flores, M Garcia-Villalba - Journal of Fluids and Structures, 2020 - Elsevier
Direct numerical simulations have been performed to analyze how three-dimensional effects
influence the performance of wings in tandem configuration undergoing a two-dimensional …

[HTML][HTML] Aerodynamic reduced-order Volterra model of an ornithopter under high-amplitude flapping

C Ruiz, JÁ Acosta, A Ollero - Aerospace Science and Technology, 2022 - Elsevier
The unsteady aerodynamics of flapping low-aspect-ratio ellipsoidal-wings in ornithopters is
analyzed and modeled by the use of three dimensional Computational Fluid Dynamics …

[HTML][HTML] A Python-based flow solver for numerical simulations using an immersed boundary method on single GPUs

M Guerrero-Hurtado, JM Catalan, M Moriche… - Computers & …, 2024 - Elsevier
We present an efficient implementation for the simulation of three-dimensional,
incompressible flow around moving bodies with complex geometries on single GPUs, based …

Propulsive performance of a two-dimensional elliptic foil undergoing interlinked pitching and heaving

A Patel, R Bhardwaj - Physics of Fluids, 2022 - pubs.aip.org
We computationally study the propulsive performance of a two-dimensional elliptic foil
undergoing interlinked pitching-heaving motion. This motion is realized by pitching the foil …

First lift-off and flight performance of a tailless flapping-wing aerial robot in high-altitude environments

S Tsuchiya, H Aono, K Asai, T Nonomura, Y Ozawa… - Scientific Reports, 2023 - nature.com
Flapping flight of animals has captured the interest of researchers due to their impressive
flight capabilities across diverse environments including mountains, oceans, forests, and …

Numerical simulation of flow over flapping wings in tandem: Wingspan effects

R Jurado, G Arranz, O Flores, M García-Villalba - Physics of Fluids, 2022 - pubs.aip.org
We report direct numerical simulations of a pair of wings in horizontal tandem configuration
to analyze the effect of their aspect ratio on the flow and the aerodynamic performance of the …

Analysis of vortical gust impact on airfoils at low Reynolds number

C Martínez-Muriel, O Flores - Journal of Fluids and Structures, 2020 - Elsevier
The response of a NACA0012 airfoil impacted by vortical gusts is investigated performing
Direct Numerical Simulations of the two-dimensional incompressible flow. Taylor vortices of …

Fluid–structure resonance in spanwise-flexible flapping wings

C Martínez-Muriel, G Arranz… - Journal of Fluid …, 2023 - cambridge.org
We report direct numerical simulations of the flow around a spanwise-flexible wing in
forward flight. The simulations were performed at but different aspect ratio have the same …

Aerodynamic performance of a self-propelled airfoil with a non-zero angle of attack

D Wang, Q Lin, C Zhou, J Wu - Physics of Fluids, 2022 - pubs.aip.org
In the natural world, numerous flying creatures generate both thrust and lift by flapping their
wings. Aerodynamic mechanisms of forward flight with flapping wings have received much …

Characterization of aerodynamic forces on wings in plunge maneuvers

M Moriche, G Sedky, AR Jones, O Flores… - AIAA Journal, 2021 - arc.aiaa.org
We present experiments and simulations of plunging maneuvers of large amplitude, for
velocity ratios of G= 1 and 2, defined as the ratio between the peak plunge velocity and the …