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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.
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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.
| Item URL in elib: | https://elib.dlr.de/52820/ | ||||||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||||||||||
| Title: | Particle Image Velocimetry in a large-scale Rayleigh-Bénard experiment | ||||||||||||||||||||||||
| Authors: |
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| Date: | 5 September 2004 | ||||||||||||||||||||||||
| Journal or Publication Title: | Proceedings of the 9th International Conference on Air Distribution in Rooms (Roomvent 2004) | ||||||||||||||||||||||||
| Refereed publication: | No | ||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||
| Gold Open Access: | 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 Start Date: | 5 September 2004 | ||||||||||||||||||||||||
| Event End Date: | 8 September 2004 | ||||||||||||||||||||||||
| Organizer: | University of Coimbra | ||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
| HGF - Program: | other | ||||||||||||||||||||||||
| HGF - Program Themes: | other | ||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||
| DLR - Program: | L - no assignment | ||||||||||||||||||||||||
| DLR - Research theme (Project): | L - no assignment (old) | ||||||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Helicopters | ||||||||||||||||||||||||
| Deposited By: | Bosbach, Dr.rer.nat. Johannes | ||||||||||||||||||||||||
| Deposited On: | 16 Jan 2008 | ||||||||||||||||||||||||
| Last Modified: | 24 Apr 2024 19:16 |
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