Details
| Original language | English |
|---|---|
| Pages (from-to) | 39-47 |
| Number of pages | 9 |
| Journal | COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering |
| Volume | 22 |
| Issue number | 1 |
| Publication status | Published - 1 Mar 2003 |
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
ASJC Scopus subject areas
- Computer Science(all)
- Computer Science Applications
- Computer Science(all)
- Computational Theory and Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
- Mathematics(all)
- Applied Mathematics
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In: COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 22, No. 1, 01.03.2003, p. 39-47.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Turbulent flow dynamics, heat transfer and mass exchange in the melt of induction furnaces
AU - Baake, E.
AU - Nacke, B.
AU - Umbrashko, A.
AU - Jakovics, A.
N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/3/1
Y1 - 2003/3/1
N2 - 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.
AB - 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.
KW - Furnaces
KW - Heat transfer
KW - Turbulent flow
UR - http://www.scopus.com/inward/record.url?scp=0041704560&partnerID=8YFLogxK
U2 - 10.1108/03321640310452006
DO - 10.1108/03321640310452006
M3 - Article
AN - SCOPUS:0041704560
VL - 22
SP - 39
EP - 47
JO - COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
JF - COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
SN - 0332-1649
IS - 1
ER -