传热学
每年出版 18 期
ISSN 打印: 1064-2285
ISSN 在线: 2162-6561
IF:
1.7
5-Year IF:
1.4
Immediacy Index:
0.6
Eigenfactor:
0.00072
JCI:
0.43
SJR:
0.318
SNIP:
0.568
CiteScore™::
3.5
H-Index:
28
Indexed in
The Choice of Turbulence Model and the Simulation of Ingot Casting and Solidification
卷 28,
册 7-8, 1997,
pp. 557-563
DOI: 10.1615/HeatTransRes.v28.i7-8.210
摘要
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.
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