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3 Component Laser-Doppler-Velocimetry applied in DNW

Seelhorst, U. (1994) 3 Component Laser-Doppler-Velocimetry applied in DNW. EURO MECH 309 "OPTICAL FLOW DIAGNOSTICS.

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Abstract

Within the scope of a co-operative programm(1) between DLR and US Air Force and the DLR programme cp-rot a three component laser-Doppler-velocimeter together with a position monitoring system has to be developed in order to determine the unsteady flow field around a rotating helicopter rotor blade. Most of these measurements have to be performed in the DNW (Deutsch- Niederlaendischer Windkanal, The Netherlands), a large wind tunnel with an open test section of 6m - 8m. Experiences from previous testsin the DNW on the same helicopter rotor blade with different LDV set-ups were gained and finally led to a 3 component LDV with a working distance of 5m and a 350mm aperture reveiving optics. By the new set-up it was possible to obtain high qualitiy data although the total laser power does not exceed 3 Watts.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1994,
Title:3 Component Laser-Doppler-Velocimetry applied in DNW
Authors:
AuthorsInstitution or Email of Authors
Seelhorst, U.UNSPECIFIED
Date:1994
Status:Published
Keywords:3 Komponenten Laser-Doppler-Anemometer, Positionserfassung, instationaere Stroemung, Hubschrauberrotor, Deutsch-Niederlaendischer Windkanal, DNW, Seeding
Event Title:EURO MECH 309 "OPTICAL FLOW DIAGNOSTICS
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L DT - Drehflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:07

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