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Heat Transfer Research
Impact-faktor: 0.404 5-jähriger Impact-Faktor: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Druckformat: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v28.i7-8.210
pages 557-563

The Choice of Turbulence Model and the Simulation of Ingot Casting and Solidification

V. V. Belousov
Donetsk State University, Donetsk, Ukraine
F. V. Nedopekin
Donetsk State University, Donetsk, Ukraine

ABSTRAKT

Based on the numerical implementation of the mathematical model taking into account the natural and forced convection within the enclosure, three schemes for the closure of turbulence are analyzed: the Prandtl mixing path model, the single-parameter k model, and the two-parameter k-ε model. It is shown that the k-ε model provides a more comprehensive description of the effect of flows in the process of steel casting to the ingot mold. For the calculations in the design problems for the regions of a rather simple shape, the implementation of the single-parameter model is proposed. The effect of the Rayleigh number on the turbulent character of the melt flow is studied.