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Investigation of Unsteady Flow Fields on High Speed Propellers by Means of the Particle Image Velocimetry Technique

de Gregorio, F. and Kompenhans, J. and Bretthauer, B. and Raffel, M. and Willert, Ch. (1998) Investigation of Unsteady Flow Fields on High Speed Propellers by Means of the Particle Image Velocimetry Technique. In: 8th International Symposium on Flow Visualization. 8th International Symposium on Flow Visualization, Sorrento, 01.-04. September 1998. ISBN 0 9533991 09.

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Abstract

This paper illustrates the measurement campaign performed at the Low Speed Tunnel (LST) of the DNW in order to demonstrate the applicability of the Particle Image Velocimetry (PIV) to large industrial facilities. The flow field measurements have been carried out on the model of a modern high speed propeller. The unsteady flow field downstream of the propeller disk has been investigated and the instantaneous and the mean flow velocity fields have been measured for different angle of attack, jaw angle and rotational speed of the propeller. Furthermore, the trajectories and the intensity of the tip vortex have been evaluated. The main objective is to illustrate that by means of PIV it is possible to obtain accurate quantitative measurements of unsteady flow fields using the same technologies (tracer particles, laser light sheet, video cameras) as the classical qualitative flow visualization

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Investigation of Unsteady Flow Fields on High Speed Propellers by Means of the Particle Image Velocimetry Technique
Authors:
AuthorsInstitution or Email of Authors
de Gregorio, F.CIRA
Kompenhans, J.UNSPECIFIED
Bretthauer, B.UNSPECIFIED
Raffel, M.UNSPECIFIED
Willert, Ch.UNSPECIFIED
Date:1998
Journal or Publication Title:8th International Symposium on Flow Visualization
Editors:
EditorsEmail
Prof. G.M. Carlomagno Prof. I. Grant, UNSPECIFIED
ISBN:0 9533991 09
Status:Published
Keywords:Particle Image Velocimetry, Tip Vortex, Propellers, Wind Tunnel, flow velocity fields
Event Title:8th International Symposium on Flow Visualization, Sorrento, 01.-04. September 1998
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:35

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