Measured 3D turbulent mixing in a small-scale circuit breaker model

Turbulence plays a key role in several physical processes related to the interruption of current in a gas circuit breaker (GCB). In this paper we study one aspect, namely turbulent gas mixing in the heating volume of a small-scale 3D GCB model. Mixing is observed using a shadowgraphy setup; postproc...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2011-06, Vol.44 (24), p.245201
Main Authors: Basse, Nils T, Kissing, Christopher, Bini, Riccardo
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Mechanical and acoustical properties of condensed matter
Mechanical properties of liquids
Physics
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Summary:Turbulence plays a key role in several physical processes related to the interruption of current in a gas circuit breaker (GCB). In this paper we study one aspect, namely turbulent gas mixing in the heating volume of a small-scale 3D GCB model. Mixing is observed using a shadowgraphy setup; postprocessing extracts information on the time-varying velocity field. Discharges with two different current amplitudes were studied and their repeatability investigated. A measure of mixing completeness, the largest vortex area, was investigated. The experiments reported upon in this paper were done in air at atmospheric pressure.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/44/24/245201