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Active Flow Control for an Outer Wing Model of a Take-off Transport Aircraft Configuration - A Numerical Study

Ciobaca, Vlad and Wild, Jochen (2014) Active Flow Control for an Outer Wing Model of a Take-off Transport Aircraft Configuration - A Numerical Study. In: AIAA 32nd Applied Aerodynamics Conference. AIAA Applied Aerodynamics Conferece, Atlanta, 16.-20- Juni. 2014, USA.

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2014-2403

Abstract

This contribution discusses the implementation of fluidic actuators that produce a pulsed outlet flow on a three dimensional model of the outer wing of a long-range transport aircraft at take-off, by high-fidelity numerical simulations. The leading-edge high-lift unprotected wing extension, including a wingtip device, designed for high performance at cruise flight, is subject to local flow separation at high angles of attack and low speed flight conditions. Active flow control (AFC) applied at the outer wing can prevent the formation of large turbulent flow separation and increase the aircraft lift to drag ratio (L/D), decrease the drag (D), and increase the angle of attack (AoA) for maximum lift (CLmax). The performed unsteady Reynolds-averaged Navier-Stokes (URANS) simulations prove the flow changes by the local AFC application and include a variation of the actuator’s geometrical setup. The results suggest a successful implementation on a transport aircraft and with an acceptable blowing momentum coefficient.

Item URL in elib:https://elib.dlr.de/92437/
Document Type:Conference or Workshop Item (Speech)
Title:Active Flow Control for an Outer Wing Model of a Take-off Transport Aircraft Configuration - A Numerical Study
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ciobaca, Vladvlad.ciobaca (at) dlr.deUNSPECIFIED
Wild, Jochenjochen.wild (at) dlr.deUNSPECIFIED
Date:June 2014
Journal or Publication Title:AIAA 32nd Applied Aerodynamics Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:High-Lift, Active Flow Control, Outter Wing, Take-off, uRANS
Event Title:AIAA Applied Aerodynamics Conferece, Atlanta
Event Location:USA
Event Type:international Conference
Event Dates:16.-20- Juni. 2014
Organizer:AIAA
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 of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Ciobaca, Vlad
Deposited On:25 Nov 2014 13:57
Last Modified:25 Nov 2014 13:57

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