Turbulent flow dynamics, heat transfer and mass exchange in the melt of induction furnaces

verfasst von: E. Baake, B. Nacke, A. Umbrashko, A. Jakovics
Abstract: Experimental investigations of the turbulent flow velocities measured in the melt of experimental induction furnaces show, that beside the intensive local turbulence pulsations, macroscopic low-frequency oscillations of the recirculated toroidal main flow eddies play an important role in the heat and mass exchange processes. Traditional numerical calculations of the flow and transfer processes, based on wide spread commercial codes using various modifications of the k-ε turbulence model show that these models do not take into account the low-frequency oscillations of the melt flow and the calculated temperature and concentration distributions in the melt essentially differs from experimental results. Therefore, the melt flow dynamics in an induction crucible furnace was numerically simulated with help of transient three-dimensional calculations using the large eddy simulation turbulence model This leads to a good agreement between calculated and measured periods of low-frequency oscillations and heat and mass transfer between the toroidal flow eddies.
Organisationseinheit(en): Institut für Elektroprozesstechnik
Externe Organisation(en): University of Latvia
Typ: Artikel
Journal: COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
Band: 22
Seiten: 39-47
Anzahl der Seiten: 9
ISSN: 0332-1649
Publikationsdatum: 01.03.2003
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Angewandte Informatik, Theoretische Informatik und Mathematik, Elektrotechnik und Elektronik, Angewandte Mathematik
Elektronische Version(en): https://doi.org/10.1108/03321640310452006 (Zugang: Geschlossen)

BibTeX

@article{5ead703d3cd84f908cd3748b28eea3dc,
title = "Turbulent flow dynamics, heat transfer and mass exchange in the melt of induction furnaces",
abstract = "Experimental investigations of the turbulent flow velocities measured in the melt of experimental induction furnaces show, that beside the intensive local turbulence pulsations, macroscopic low-frequency oscillations of the recirculated toroidal main flow eddies play an important role in the heat and mass exchange processes. Traditional numerical calculations of the flow and transfer processes, based on wide spread commercial codes using various modifications of the k-ε turbulence model show that these models do not take into account the low-frequency oscillations of the melt flow and the calculated temperature and concentration distributions in the melt essentially differs from experimental results. Therefore, the melt flow dynamics in an induction crucible furnace was numerically simulated with help of transient three-dimensional calculations using the large eddy simulation turbulence model This leads to a good agreement between calculated and measured periods of low-frequency oscillations and heat and mass transfer between the toroidal flow eddies.",
keywords = "Furnaces, Heat transfer, Turbulent flow",
author = "E. Baake and B. Nacke and A. Umbrashko and A. Jakovics",
note = "Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",
year = "2003",
month = mar,
day = "1",
doi = "10.1108/03321640310452006",
language = "English",
volume = "22",
pages = "39--47",
journal = "COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering",
issn = "0332-1649",
publisher = "Emerald Group Publishing Ltd.",
number = "1",
}