Izvorni znanstveni članak
https://doi.org/10.21278/TOF.43Si103
Numerical Simulation Study of Turbulent Flow in Vacuum Tempering Furnace Using K-Epsilon Model
Hong-Xia Chen
; College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia, P.R. China
Guang-Jun Jiang
; College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia, P.R. China
Le Gao
; College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia, P.R. China
Sažetak
Vacuum tempering furnace prevalence of uneven temperature problems. In this paper, numerical analyses for turbulent flow inside vacuum tempering furnace using k-ε turbulence model. The moving reference frame is helpful to improve the precision of the model. Not only the loading area and its adjacent components have an influence on temperature uniformity, but the shape of the auxiliary parts, the shape of the driving parts and the way of loading have an influence. The influence factors of turbulence are studied from multiple angles. Based on the factors, the combinatorial optimization scheme is proposed and temperature uniformity test is carried out. The results show that the shape of the fan blade, the inlet diameter of the gas guide tube, the shape of the centre channel and the shape of the wind scooper influences furnace temperature uniformity. The adjustment of loading area and the use of multiple central channels in equal area will not affect furnace temperature uniformity.
Ključne riječi
Flow field analysis; K-epsilon model; Influence factor; Temperature uniformity test
Hrčak ID:
222554
URI
Datum izdavanja:
9.7.2019.
Posjeta: 1.611 *