NUMERICAL SIMULATION ON THE MIGRATION BEHAVIOR OF GAS BUBBLES IN THE SIMULATED HIGH TEMPERATURE MELTS
Journal Title: Topics in Intelligent Computing and Industry Design (ICID) - Year 2017, Vol 1, Issue 2
Abstract
In the electric arc furnace steelmaking process, about 20 kg of dust generated per ton steel produced. These dusts are mainly due to the burst of CO bubbles which generated in the process of decarburization period. In this paper, numerical simulation with Fluent 12.0 are used to study the buoyancy behaviors of single bubble, two bubbles and three bubbles in the simulated high temperature melts in order to provide theoretical basis to reduce dust generation. The results show that the average rise speed of the gas bubble increases with its diameter. When the diameter of gas bubble is smaller, the shape of the bubble keeps more stable, and its ascending trajectory is a straight line. While the diameters of gas bubbles are bigger, it is easier to deform, and the bubble ascending trajectory become unstable. Furthermore, both coalescence and separation of gas bubbles exist when two gas bubbles rise in the simulated high temperature melts. The critical coalescence space of gas bubbles increases with the diameter of gas bubbles.
Authors and Affiliations
Cao Yifeng, Ma Guojun, Zhang Xiang
Keywords
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- EP ID EP409409
- DOI 10.26480/wsmce.01.2017.09.11
- Views 63
- Downloads 0
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