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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

METHODS FOR MODELING HEAT TRANSFER AND SOLIDIFICATION IN CONTINUOUS CASTING

Get access (open in a dialog) DOI: 10.1615/IHTC16.mpf.022268
pages 6687-6694

要約

Complex flow phenomena occurring within the mold region of a continuous caster result in the natural development of unsteady oscillating flow patterns, leading to increased internal and surface defects in solidified steel slabs. These unstable flow patterns are both fundamentally challenging and expensive to recreate through plant trials. However, computational fluid dynamics (CFD) modeling provides an alternative means to investigate flow instability and identify inefficiencies in current continuous casting processes. This work is part of an ongoing effort to develop a comprehensive continuous caster model, using the commercial STAR CCM+® software, and examines the simulated results obtained while performing a mesh sensitivity study for modeling the shell solidification in a continuous caster. Simulations were conducted using the k-omega (k-ω) shear-stress turbulence (SST) model for Eulerian-multiphase flow of a low carbon steel, under steady-state and transient conditions. The findings demonstrate noticeable dissimilarities in the predicted shell growth obtained using unstructured polyhedral or structured hexahedral meshing schemes for steady-state and transient simulations.