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Mitigating loads by means of an active slat

Neuhaus, Lars and Singh, Piyush and Homeyer, Tim and Huxdorf, Oliver and Riemenschneider, Johannes and Wild, Jochen and Peinke, Joachim and Hölling, Michael (2018) Mitigating loads by means of an active slat. Journal of Physics: Conference Series, 1037, pp. 1-8. Institute of Physics (IOP) Publishing. DOI: 10.1088/1742-6596/1037/2/022032 ISSN 1742-6588

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Official URL: http://iopscience.iop.org/article/10.1088/1742-6596/1037/2/022032

Abstract

An active slat on an airfoil is tested in the wind tunnel to reduce lift fluctuations caused by inflow angle fluctuations. The airfoil with an integrated slat allows to control the gap size between slat and main body. The variation of the gap size leads to dfferent aerodynamic properties. This behavior is investigated in a comprehensive characterization of the aerodynamics for different positions of the static slat and a wide range of angles of attack. A sinusoidal inflow angle fluctuation is generated by an active grid. These fluctuations are causing lift force fluctuations at the airfoil with static slat. The slat gap size then is varied dynamically synchronous to the inflow angle uctuations. Depending on the phase shift between slat gap size variation and inflow angle fluctuation a reduction of the lift force is observed. The slat system is found to be capable of mitigating load fluctuations caused by turbulent inflow.

Item URL in elib:https://elib.dlr.de/120655/
Document Type:Article
Title:Mitigating loads by means of an active slat
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neuhaus, LarsUniversität OldenburgUNSPECIFIED
Singh, PiyushUniversität OldenburgUNSPECIFIED
Homeyer, TimForWind - Center for Wind Energy Research, Institute of Physics, University OldenburgUNSPECIFIED
Huxdorf, Oliveroliver.huxdorf (at) dlr.deUNSPECIFIED
Riemenschneider, JohannesJohannes.Riemenschneider (at) dlr.dehttps://orcid.org/0000-0001-5485-8326
Wild, JochenJochen.Wild (at) dlr.dehttps://orcid.org/0000-0002-2303-3214
Peinke, JoachimCarl-Ossietzky Universität OldenburgUNSPECIFIED
Hölling, MichaelForWind - Center for Wind Energy Research, Institute of Physics, University OldenburgUNSPECIFIED
Date:19 June 2018
Journal or Publication Title:Journal of Physics: Conference Series
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:No
Volume:1037
DOI :10.1088/1742-6596/1037/2/022032
Page Range:pp. 1-8
Publisher:Institute of Physics (IOP) Publishing
ISSN:1742-6588
Status:Published
Keywords:wind turbine, load mitigation, slat, aerodynamics
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Wild, Dr.-Ing. Jochen
Deposited On:29 Jun 2018 08:47
Last Modified:01 Jul 2019 09:50

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