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Vortical flow structures at a helicopter rotor model measured by LDV and PIV

Published online by Cambridge University Press:  04 July 2016

M. Raffel ,
U. Seelhorstt  and
C. Willert
M. Raffel
Affiliation:
Institut für Strömungsmechanik Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Bunsenstraβe 10, Göttingen, Germany
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Abstract

Flowfield measurements of the blade tip vortices from a rotating helicopter rotor model were performed by three component laser-Doppler velocimetry (3D-LDV) and conventional (two component) particle image velocimetry (PIV). In general, the results are in good correspondence, but also illustrate the different properties of both techniques: LDV offers the capability of three-component measurements, whereas PIV captures the unsteadyness of the flowfield.

Type
Research Article
Information
The Aeronautical Journal , Volume 102 , Issue 1014 , April 1998 , pp. 221 - 227
Copyright
Copyright © Royal Aeronautical Society 1998 

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Footnotes

†

now at: Eurocopter Deutschland (ECD), D-81663 München, Germany.

‡

now at: Institut für Antriebstechnik, Deutsches Zentruni für Luft- und Raumfahrt e.V. (DLR). Linder Hohe, D-51147 Köln., Germany.

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