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Experimental investigation of high-pressure pulsed blowing for dynamic stall control

Gardner, Anthony Donald and Richter, Kai and Mai, Holger and Neuhaus, Dietmar (2014) Experimental investigation of high-pressure pulsed blowing for dynamic stall control. CEAS Aeronautical Journal, 5 (2), pp. 185-198. Springer. doi: 10.1007/s13272-014-0099-y. ISSN 1869-5590.

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Official URL: http://www.springer.com/engineering/mechanical+engineering/journal/13272


Dynamic stall control using pulsed blowing is compared with control by constant blowing for an OA209 airfoil. Flow control was by blowing from 42 portholes, flush with the airfoil surface, of diameter 1% chord positioned at 10% chord and with separation 6.7% chord. Light stall at Mach 0.3 could be fully suppressed by constant blowing, and for deep stall a pitching moment peak reduction of 65% was seen. For the jet configuration and test cases investigated in this paper, pulsed blowing at 100-500 Hz was found to be at best as effective as constant blowing with the same mass flux for the control of dynamic stall.

Item URL in elib:https://elib.dlr.de/85078/
Document Type:Article
Additional Information:Published online: 20. February 2014
Title:Experimental investigation of high-pressure pulsed blowing for dynamic stall control
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gardner, Anthony Donaldtony.gardner (at) dlr.deUNSPECIFIED
Richter, Kaikai.richter (at) dlr.deUNSPECIFIED
Mai, Holgerholger.mai (at) dlr.deUNSPECIFIED
Neuhaus, DietmarDietmar.Neuhaus (at) dlr.deUNSPECIFIED
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/s13272-014-0099-y
Page Range:pp. 185-198
EditorsEmailEditor's ORCID iD
Keywords:Helicopter Blade, Wind tunnel, Flow Control, Dynamic stall, Jets, Experiment
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft (old)
Location: Göttingen , Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Aeroelasticity > Aeroelastic Experiments
Institute of Materials Physics in Space > Leitungsbereich MP
Deposited By: Micknaus, Ilka
Deposited On:27 May 2014 16:35
Last Modified:08 Mar 2018 19:01

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