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Numerical study of a continuous casting process with electromagnetic brake

This dissertation investigates the effect of electromagnetic braking and gas injection on the fluid flow in a continuous casting slab mold numerically and makes verifications on basis of a small Liquid Metal Model for Continuous Casting of steel (mini-LIMMCAST). Numerical calculations were performed by means of the software package CFX with an implemented RANS-SST turbulence model. The non-isotropic nature of the MHD turbulence was taken into account by specific modifications of the turbulence model. The numerical results were validated by flow measurements at the mini-LIMMCAST facility. Numerical simulations disclose the damping effect on the flow closely depending on the wall conductance ratio. In addition, specific modifications of the turbulence model play a crucial role in reconstructing the peculiar phenomenon of an excitation of nonsteady, nonisotropic, large-scale flow perturbations caused by the application of the DC magnetic field.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:105-qucosa-144798
Date19 June 2014
CreatorsMiao, Xincheng
ContributorsTU Bergakademie Freiberg,, Prof. Dr.-Ing. Rüdiger Schwarze, Prof. Dr.-Ing. Rüdiger Schwarze, Prof. Dr.-Ing. Egbert Baake
PublisherTechnische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola"
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typedoc-type:doctoralThesis
Formatapplication/pdf

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