RT Journal Article
T1 Numerical simulation of the shear stress produced by the hot metal jet on the blast furnace runner
A1 Barral Rodiño, Patricia
A1 Nicolás Ávila, Begoña
A1 Quintela Estévez, Peregrina
K1 Blast furnace
K1 Jet impact
K1 Numerical simulation
K1 Multiphase flow
K1 Turbulent flow
K1 Shear stress
AB During steel casting process a jet of molten metal runs out of the blast furnace hearth and strikes the runner. The continuous impact of hot fluids causes significant damage to its surface, which is made of refractory concrete. In particular, the initial impact on the dry runner is expected to be critical. This work deals with the analysis of the mechanical impact on the runner through the numerical simulation of the process. We propose an incompressible turbulent isothermal Navier-Stokes model, where turbulence is modelled considering two  models (standard and SST). The interface dynamics is described by applying the Volume of Fluid (VOF) method, while the surface tension vector is provided by the Continuum Surface model (CSF). Their numerical results are performed in 2D. A comparative analysis of the most suitable transient turbulent multiphase model is presented by simulating benchmark physical experiments. The shear stress arising from the impact of the jet on the runner is also analyzed. An improvement of the classical analytical expression given in [1] is proposed. Both, the chosen turbulence model, and the formulas to compute the shear stress are validated using two benchmark laboratory tests and three numerical experiments. Numerical results are given for the impact of the jet on the dry runner of the blast furnace
PB Elsevier
YR 2021
FD 2021
LK http://hdl.handle.net/10347/27654
UL http://hdl.handle.net/10347/27654
LA eng
NO Computers & Mathematics with Applications 102 (2021) 146-159. https://doi.org/10.1016/j.camwa.2021.10.013
NO This work was supported by FEDER and Xunta de Galicia [grant number ED431C 2017/60, ED431C 2021/15], the Ministry of Economy, Industry and Competitiveness through the Plan Nacional de I+D+i [grant number MTM2015-68275-R], Agencia Estatal de Investigación [PID2019-105615RB-I00/AEI/10.13039/501100011033] and by the Vicerreitoría de Investigación e Innovación da Universidade de Santiago de Compostela via the Programa de Becas de Colaboración en Investigación 2016
DS Minerva
RD 24 abr 2026