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Influence of Leading-Edge Protuberances on the Flow Physics of Stall
Bose, Chandan; Terrapon, Vincent; Dimitriadis, Grigorios
2022In Proceedings of AIAA SCITECH 2022 Forum
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Keywords :
Leading-Edge Vortex; Stall; Unsteady Aerodynamics
Abstract :
[en] This paper investigates the underlying flow physics of static stall on a finite wing in the presence of bio-inspired leading-edge protuberances (LEPs) at a Reynolds number of 6 X 104. We present Unsteady Reynolds Average Navier-Stokes (URANS) flow simulations of the static stall behavior of a three-dimensional wing (spanning from wall to wall) with a sinusoidal leading edge shape of different amplitudes and wavelengths. Numerical simulations have been performed using the incompressible pisoFoam solver with the Langtry-Menter k-omega-SST turbulence model, available in the OpenFOAM framework, to capture the differences in the underlying flow physics of four different wing geometries. The unsteady temporal evolution of the flow structures is studied and compared to that obtained for the base configuration of an SD7003 wing without LEPs. Improved mean lift generation in the post-stall regime is observed due to the effect of LEPs for all four cases compared to the base case. The present study will be extended to capture the impact of LEPs on the dynamic stall phenomenon for pitching motion in our future study. The findings of this study can directly benefit the design of a bio-inspired leading-edge control device applicable to many engineering systems.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Bose, Chandan ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
Terrapon, Vincent  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Modélisation et contrôle des écoulements turbulents
Dimitriadis, Grigorios ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
Language :
English
Title :
Influence of Leading-Edge Protuberances on the Flow Physics of Stall
Publication date :
January 2022
Event name :
AIAA SCITECH 2022 Forum
Event organizer :
American Institute of Aeronautics and Astronautics
Event place :
San Diego, CA & Virtual, United States
Event date :
January 3-7, 2022
Audience :
International
Main work title :
Proceedings of AIAA SCITECH 2022 Forum
Peer reviewed :
Peer reviewed
Available on ORBi :
since 30 December 2021

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