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Preliminary results of the first multiple image-based measurement campaign for the as-sessment of propeller slipstream properties on the BNF wind tunnel model

Roosenboom, Eric and Geisler, Reinhard and Agocs, Janos and Schanz, Daniel and Weikert, Thorsten and Schröder, Andreas (2013) Preliminary results of the first multiple image-based measurement campaign for the as-sessment of propeller slipstream properties on the BNF wind tunnel model. AFDAR Workshop on "Application of advanced flow diagnostics to aeronautics", 06. -07. Feb. 2013, Braunschweig, Germany.

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Abstract

In order to alleviate cities and their citizens from aircraft noise an aircraft has been designed which should enable quiet, efficient, short take-off and landings (QESTOL) within the German research project ‘Bürgernahes Flugzeug (BNF)’ (translated: citizen friendly airplane). The various experimental aerodynamic aspects are investigated for a large part within the DLR project ‘SAMURAI’ which is dedicated to the simultaneous application of multiple image-based measurement techniques, such as (stereoscopic and tomographic) Particle Image Velocimetry (PIV), Background Oriented Schlieren (BOS), Projected Pattern Correlation (PROPAC), Temperature and Pressure Sensitive Paint (TSP/PSP) and acoustic array techniques. These image-based measurement techniques have been applied for the investigation of the propeller effects of the BNF aircraft. Non-intrusive image-based measurement techniques are advantageous for the investigation of highly rotating flows and are particularly useful for the investigation of effects such as thrust reverse or propeller slipstream structures. In addition to an experimental investigation are such datasets of importance for the validation of numerical codes. The current paper discusses several measurement tech-niques which have been applied during one wind tunnel entry for the investigation of several propeller induced proper-ties. The propeller slipstream and the active flow control have been analyzed with mono- and stereoscopic Particle Image Velocimetry (PIV). The helical structures at the in-board section of the propeller slipstream have been visualized with the Background Oriented Schlieren (BOS) method. Finally, the propeller blade bending and torsion are investigated using Projected Pattern Correlation (PROPAC).

Item URL in elib:https://elib.dlr.de/80903/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Abstract
Title:Preliminary results of the first multiple image-based measurement campaign for the as-sessment of propeller slipstream properties on the BNF wind tunnel model
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Roosenboom, EricUNSPECIFIEDUNSPECIFIED
Geisler, ReinhardUNSPECIFIEDUNSPECIFIED
Agocs, JanosUNSPECIFIEDUNSPECIFIED
Schanz, DanielUNSPECIFIEDUNSPECIFIED
Weikert, ThorstenUNSPECIFIEDUNSPECIFIED
Schröder, AndreasUNSPECIFIEDUNSPECIFIED
Date:2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:PIV, BOS, PROPAC, Combined methods, Propeller
Event Title:AFDAR Workshop on "Application of advanced flow diagnostics to aeronautics"
Event Location:Braunschweig, Germany
Event Type:Workshop
Event Dates:06. -07. Feb. 2013
Organizer:DLR, AS-EXV, Dr. Andreas Schröder
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 - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:19 Apr 2013 11:56
Last Modified:11 Dec 2013 10:45

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