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PIV investigation of a propeller at thrust reverse

Roosenboom, Eric and Schröder, Andreas and Heider, André and Agocs, Janos (2008) PIV investigation of a propeller at thrust reverse. MOTAR Meeting, 2008-04-02 - 2008-04-03, Göttingen (Germany).

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Abstract

The flow around an 8-bladed propeller at thrust reverse conditions is analysed using a dou-ble stereoscopic Particle Image Velocimetry (PIV) in the Airbus Low-Speed Wind Tunnel facility in Bremen, Germany. The propeller is mounted on a half-model with two counter-rotating propellers, where only the outboard propeller is investigated. The model is prepared at landing configuration set-tings at an angle of attack of 0° and extended flaps. The objective is to investigate flow phenomena occurring in the flow immediately upstream and downstream of a propeller at thrust reverse. In this respect a region of half a diameter of the outboard propeller is scanned using a traverse for both the laser light sheet and the four CCD cameras, in addition several measurements are performed at differ-ent phases of the propeller rotation. The fluid mechanical properties of the flow around two different propeller blade settings are investigated and compared for their ability to deliver negative thrust, i.e. thrust reverse. The first setting has identical blade pitch angles for all propeller blades; the second setting has alternating blade pitch angles. It is concluded that the latter setting, with alternating propel-ler blade pitch angles, provides the best flow properties.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:PIV investigation of a propeller at thrust reverse
Authors:
AuthorsInstitution or Email of Authors
Roosenboom, EricUNSPECIFIED
Schröder, AndreasUNSPECIFIED
Heider, AndréUNSPECIFIED
Agocs, JanosUNSPECIFIED
Date:2008
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proccedings
Status:Published
Keywords:PIV, Propeller flow, Thrust reverse, Industrial wind tunnel, Phase-locked
Event Title:MOTAR Meeting
Event Location:Göttingen (Germany)
Event Type:international Conference
Event Dates:2008-04-02 - 2008-04-03
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:11 Aug 2008
Last Modified:27 Apr 2009 14:56

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