Journal
JOM
Volume 70, Issue 10, Pages 2128-2138Publisher
SPRINGER
DOI: 10.1007/s11837-018-3045-3
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Funding
- Fundamental Research Funds for the Central Universities [FRF-TP-15-001C2, FRF-TP-15-067A1, FRF-TP-17-039A1, FRF-BD-17-010A]
- Beijing Key Laboratory of Green Recycling and Extraction of Metals (GREM)
- High Quality steel Consortium (HQSC) at the School of Metallurgical and Ecological Engineering at University of Science and Technology Beijing (USTB), China
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The multiphase fluid flow in a gas-stirred system for steelmaking ladles is simulated using an Eulerian-Lagrangian approach. The effects of interphase forces and the bubble-induced turbulence on the fluid flow and the bubble behavior are analyzed by comparing with the measured data. It is found that the drag force strongly affects the velocity field and bubble volume fraction in the plume, but hardly influences the bubble plume shape. The lift force is mainly responsible for the spreading of the bubble plume, and the bubble plume becomes wider as the lift coefficient increases. The virtual mass force has a significant effect on the bubble volume fraction and should be considered reasonable. The pressure gradient force is negligible because it hardly affects the bubble plume dynamic. On increasing the bubble-induced turbulence, the bubble plume becomes wider and the liquid velocity and the bubble volume fraction in bubble plume are reduced.
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