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- Title
Numerical Simulation of Flow Field in Large Bottom-Blown Furnace Under Different Scale-Up Criteria.
- Authors
Xi, Wenlong; Niu, Liping; Song, Jinbo; Liu, Suhong
- Abstract
In this paper, the fluid dynamics software Fluent is used to simulate the gas–liquid two-phase flow characteristics of a bottom-blown furnace under four different scale-up criteria. The results show that most of the low-velocity regions are located on both sides of the bubble flow region, and the bubble flow continuously swings upward in a zigzag motion, which leads to macroscopic instability. Under different scale-up criteria, the increase of gas velocity cannot effectively increase the velocity of the low-velocity zone in the molten pool, but can reduce the area of the low-velocity zone. Under each criterion, more than 95% of the area is in the velocity range of 0–6.4 m/s. High shear stress mainly exists at both walls and near the center of the bottom oxygen lance. Considering the gas flow consumption, velocity distribution, and shear-stress distribution, the modified Froude number is more suitable as the scale-up criterion.
- Subjects
FLOW simulations; FLUID dynamics; FURNACES; COMPUTER simulation; FROUDE number; GAS flow
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2023, Vol 75, Issue 2, p437
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-022-05628-y