Numerical Simulation of Multiphase Flow in Vanyukov Furnace

ZHANG Hongliang; CHEN Yongming

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Numerical Simulation of Multiphase Flow in Vanyukov Furnace

ZHANG Hongliang * #,CHEN Yongming

School of metallurgy and environment, Central South University, Changsha, 410083

*Correspondence author

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Funding: National Natural Science Foundation（No.No.51104182）, Specialized Research Fund for the Doctoral Program of Higher Education（No.20100162120008）

Opened online: 4 November 2013

Accepted by: none

Citation: ZHANG Hongliang,CHEN Yongming.Numerical Simulation of Multiphase Flow in Vanyukov Furnace[OL]. [ 4 November 2013] http://en.paper.edu.cn/en_releasepaper/content/4566463

The multiphase flow of widely used Vanyukov furnace was numerically studied. An unsteady three-dimensional and three-phase flow model was firstly built by Computational Fluid Dynamics (CFD) software ANSYS FLUENT?, and then solved with Volume of Fluid (VOF) and - model. The results showed that the proposed model could be used to predict the multi-phase movement, the slag/air fluctuation, the vortex formation and effects of structural and operational parameters. By Fast Fourier Transform(FFT), the dominant frequency of density with time signal was calculated, which was 0.29 Hz. The analysis of different injection flow rates of enriched air indicated that it has huge effect on the mean slag velocity. The peak mean velocity changed from 2.17 to 4.99 m/s while the flow rate of enriched air varied from 70 to 160 m/s. The proposed model provided a method to optimize the furnace structure and operating conditions for the best furnace performance and lowest energy consumption.

Keywords:Nonferrous metallurgy; Vanyukov furnace; numerical simulation; multiphase flow;structure optimization

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