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Validation experiment on a passive suction flap for Hybrid Laminar Flow Control applications

Kilian, Thomas and Udo, Krause and Sven, Schaber and Dimitri, Neufeld (2018) Validation experiment on a passive suction flap for Hybrid Laminar Flow Control applications. In: Jahresbericht 2018, pp. 68-69. 21. DGLR-Fach-Symposium der STAB, 06.-07. Nov. 2018, Darmstadt, Deutschland.

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Abstract

Current designs for Hybrid Laminar Flow Control (HLFC) systems on aircraft wings often feature passive suction flaps to provide the required suction mass flow instead of or in addition to an active compressor system. This work presented herein, performed within the German LuFo-funded project OptiHyL, aims at a deeper understanding of the complex flow physics of such a flap in the high subsonic regime and at the creation of a validation database for simulation-aided design. In order to achieve that, a generic wind-tunnel model of a 2D airfoil featuring a flap and ducting has been tested at the Transonic Wind Tunnel Göttingen (DNW-TWG). The meas-urements included forces, moments, surface pressures on the airfoil and within the ducting, mass-flow through the flap and flow topology via PIV. The major experimental findings are discussed in this article alongside first promising CFD RANS simulation results.

Item URL in elib:https://elib.dlr.de/123020/
Document Type:Conference or Workshop Item (Speech)
Title:Validation experiment on a passive suction flap for Hybrid Laminar Flow Control applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kilian, ThomasThomas.Kilian (at) dlr.dehttps://orcid.org/0000-0003-1395-608X
Udo, KrauseUdo.Krause (at) airbus.comUNSPECIFIED
Sven, SchaberSven.Schaber (at) airbus.comUNSPECIFIED
Dimitri, NeufeldDimitri.Neufeld (at) airbus.comUNSPECIFIED
Date:6 November 2018
Journal or Publication Title:Jahresbericht 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 68-69
Status:Published
Keywords:Experimentelle Aerodynamik, Laminarforschung
Event Title:21. DGLR-Fach-Symposium der STAB
Event Location:Darmstadt, Deutschland
Event Type:national Conference
Event Dates:06.-07. Nov. 2018
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 - Concepts and Integration
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Kilian, Thomas
Deposited On:14 Nov 2018 10:35
Last Modified:14 Nov 2018 10:35

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