elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Active Flow Separation Control on a High-Lift Wing-Body Configuration - Part 1: Baseline Flow and Constant Blowing

Kühn, Timo and Ciobaca, Vlad and Rudnik, Ralf and Gölling, Burkhard and Breitenstein, Wiebke (2011) Active Flow Separation Control on a High-Lift Wing-Body Configuration - Part 1: Baseline Flow and Constant Blowing. 29th AIAA Applied Aerodynamics Conference, 27 - 30 June 2011, Honolulu, HI, USA.

[img] PDF
461kB

Abstract

This paper describes the influence of grid resolution and turbulence modeling for a 3D transport aircraft in high lift configuration with massive flap separation. The flap is equipped with spanwise slotted active flow control (AFC) devices to allow studies on active separation control. The effects of constant slotted blowing on the high lift performance are highlighted. Oil flow pictures from a mid-scale experiment in the low speed wind tunnel of Airbus in Bremen (B-LSWT) serve as a validation database for the baseline CFD results. RANS calculations are carried out with and without constant blowing boundary conditions. The baseline flow is also investigated with a time-accurate URANS approach. One of the major outcomes of the AFC study is the demonstration of the feasibility to simulate AFC concepts on a 3D configuration. Constant blowing shows the beneficial effect that separation can largely be suppressed because of the energy added to the flow on the suction side of the flap. This study serves as a preceding validation for the subsequent pulsed blowing approach treated in Part 2.

Item URL in elib:https://elib.dlr.de/72228/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Active Flow Separation Control on a High-Lift Wing-Body Configuration - Part 1: Baseline Flow and Constant Blowing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kühn, Timotimo.kuehn (at) dlr.deUNSPECIFIED
Ciobaca, Vladvlad.ciobaca (at) dlr.deUNSPECIFIED
Rudnik, Ralfralf.rudnik (at) dlr.deUNSPECIFIED
Gölling, Burkhardburkhard.goelling (at) airbus.comUNSPECIFIED
Breitenstein, WiebkeUniversity of Applied Sciences Emden/LeerUNSPECIFIED
Date:June 2011
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Aerodynamics, Computational Fluid Dynamics, High Lift Flows, Active Flow Control
Event Title:29th AIAA Applied Aerodynamics Conference
Event Location:Honolulu, HI, USA
Event Type:international Conference
Event Dates:27 - 30 June 2011
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old), L - Simulation & Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Kühn, Timo
Deposited On:05 Dec 2011 13:02
Last Modified:31 Jul 2019 19:33

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.