CFD modelling of global mixing parameters in a Peirce-Smith converter with comparison to physical modelling
作者： Deside K Chibwe , Guven Akdogan , Chris Aldrich , Rauf H Eric
关键词: Volume of fluid method 、 Applied mathematics 、 Turbulence 、 Compressed air 、 Secondary air injection 、 Computational fluid dynamics 、 Mixing (physics) 、 Slag (welding) 、 Mechanics 、 Volumetric flow rate 、 Computer science
摘要: The flow pattern and mixing in an industrial Peirce-Smith converter (PSC) has been experimentally numerically studied using cold model simulations. effects of air volumetric rate presence overlaying slag phase on matte the structure were investigated. 2-D 3-D simulations three system carried out volume fluid (VOF) realizable k ɛ turbulence to account for multiphase nature respectively. These models implemented commercial Computational Fluid Dynamics (CFD) numerical code FLUENT. physical was a 1:5 horizontal cylindrical container made Perspex with seven tuyeres one side cylinder typifying converter. Compressed blown into through tuyeres, simulating or oxygen enriched injection PSC. phases simulated water kerosene respectively this study. influence varying blowing conditions quantities bulk five different rates levels thickness. Mixing time results evaluated terms total specific power two correlations proposed estimating times PSC low high volumes. Both experimental good agreement predict variation characteristics relation global field variables set up mathematical calculation relevant integrated turbulence, Volume Fraction (VF) velocity magnitudes. findings revealed that both layer have profound efficiency
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