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Numerical Simulation and Validation of the Aerodynamics of Static and Dynamic Spoilers

Geisbauer, Sven (2018) Numerical Simulation and Validation of the Aerodynamics of Static and Dynamic Spoilers. Deutscher Luft- und Raumfahrtkongress 2018, 4.-6. Sept. 2018, Friedrichshafen.

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Abstract

Spoilers play a vital role in the flight control systems of modern aircraft. Due to their efficiency and fast deflection rates they are widely used to assist in roll control or for gust load alleviation purposes. As deflecting a spoiler always induces flow separation, the numerical simulation of their aerodynamic behavior still is challenging for high-fidelity flow solvers, or even impossible for low-fidelity tools. The work presented in this paper therefore focused on extending the application range of the DLR TAU flow solver by validating it, in a first step, for spoiler applications in the low-speed regime. To achieve that, steady and unsteady simulations were conducted for static and dynamic spoiler deflections. It was shown that the chosen numerical approach is well-suited to predict the surface pressure distribution for static spoiler deflections of up to 50°. In addition the transient aerodynamic response for a variety of deflection rates, deflection angles and angles of attack matched the experimental data very well.

Item URL in elib:https://elib.dlr.de/121681/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Simulation and Validation of the Aerodynamics of Static and Dynamic Spoilers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Geisbauer, Svensven.geisbauer (at) dlr.deUNSPECIFIED
Date:2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, Validation, TAU, Spoiler, Unsteady
Event Title:Deutscher Luft- und Raumfahrtkongress 2018
Event Location:Friedrichshafen
Event Type:national Conference
Event Dates:4.-6. Sept. 2018
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Geisbauer, Sven
Deposited On:24 Sep 2018 13:28
Last Modified:24 Sep 2018 13:28

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