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Particle Image Velocimetry in a large-scale Rayleigh-Bénard experiment

du Puits, Ronald and Bosbach, Johannes and Resagk, Christian and Thess, André and Wagner, Claus (2004) Particle Image Velocimetry in a large-scale Rayleigh-Bénard experiment. In: Proceedings of the 9th International Conference on Air Distribution in Rooms (Roomvent 2004). 9th International Conference on Air Distribution in Rooms (Roomvent 2004), 2004-09-05 - 2004-09-08, Coimbra, Portugal.

Full text not available from this repository.

Official URL: http://www.adai.pt/roomvent/

Abstract

We present a method capable of measuring the velocity field in a 7.00m x 3.50m plane of a large-scale Rayleigh-Bénard (RB) experiment using an adapted Particle Image Velocimetry (PIV) technique. The structure of the flow in RB convection is well known for a few numbers of geometries and Rayleigh (Ra)-numbers Ra<1011. Our test cell known as the Barrel of Ilmenau is a cylindrical box with a diameter of 7.15m and a variable height up to 6.30m and filled with air. A heated plate at the bottom and a cooled plate at the top cause a convective motion of the air in the interior of the cell. In order to make visible this flow soap bubbles filled with Helium are blown into the cell. By using the PIV technique, consisting of a pulsed 160mJ-NdYAG laser and two 1.3MPixel cameras the velocity field can be measured and analysed.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Particle Image Velocimetry in a large-scale Rayleigh-Bénard experiment
Authors:
AuthorsInstitution or Email of Authors
du Puits, RonaldIlmenau University of Technology
Bosbach, JohannesUNSPECIFIED
Resagk, ChristianIlmenau University of Technology
Thess, AndréIlmenau University of Technology
Wagner, ClausUNSPECIFIED
Date:5 September 2004
Journal or Publication Title:Proceedings of the 9th International Conference on Air Distribution in Rooms (Roomvent 2004)
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Rayleigh-Bénard convection, Particle Image Velocimetry (PIV)
Event Title:9th International Conference on Air Distribution in Rooms (Roomvent 2004)
Event Location:Coimbra, Portugal
Event Type:international Conference
Event Dates:2004-09-05 - 2004-09-08
Organizer:University of Coimbra
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Dr.rer.nat. Johannes Bosbach
Deposited On:16 Jan 2008
Last Modified:27 Apr 2009 14:39

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