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Investigation of a particle laden wake flow by means of particle image velocimetry

Möller, T. and Bütefisch, K.-A. (1998) Investigation of a particle laden wake flow by means of particle image velocimetry. In: 9th International Symposium of Applications of Laser Techniques to Fluid Mechanics, II, 24.6.1-24.6.6. 9th International Symposium of Applications of Laser Techniques to Fluid Mechanics, Lissabon/Portugal, 13.-16. Juli 1998.

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Abstract

The flow of particles in the turbulent wake of a rectangular obstacle has been determined quantitatively using by means of particle-image-velocimetry (PIV). Hence it was possible to obtain the instantaneous velocity field of the particles and information about the structures formed by the dispersed phase. To achieve knowledge of the influence of the Stokes-Number on the particle flow the particle diameter has been varied. Also different Reynoldsnumbers of the mean flow, i.e. mean velocities, and grids for turbulence generation have been utilized in this investigation. I strong influence of the particle diameter onto the velocity distribution in the wake region has been found. The particle velocity in opposite has only a small effect onto the velocity distribution.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Investigation of a particle laden wake flow by means of particle image velocimetry
Authors:
AuthorsInstitution or Email of Authors
Möller, T.UNSPECIFIED
Bütefisch, K.-A.UNSPECIFIED
Date:1998
Journal or Publication Title:9th International Symposium of Applications of Laser Techniques to Fluid Mechanics
Volume:II
Page Range:24.6.1-24.6.6
Editors:
EditorsEmail
Instituto Superior Tecnico Department of Mechanical Engineering Av. Rovisco Pais, 1096 Lisboa Codex PortugalUNSPECIFIED
Status:Published
Keywords:Particle Image Velocimetry, Wake Flow, Particle laden flow, Flow field measurement
Event Title:9th International Symposium of Applications of Laser Techniques to Fluid Mechanics, Lissabon/Portugal, 13.-16. Juli 1998
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L SI - Versuchs- und Simulationstechniken
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 20:25

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