2019 Pittsburgh AISTech

Modeling of Multiphase Flow and Argon Bubble Entrapment in Continuous Slab Casting of Steel (Room 411)

07 May 19
4:30 PM - 5:00 PM

Tracks: Metallurgy - Steelmaking & Casting

Speaker(s): Brian Thomas, Professor of Mechanical Engineering, Colorado School of; Seong-Mook Cho, Colorado School of Mines; Mingyi Liang, Colorado School of Mines; Hamed Olia, Colorado School of Mines; Lipsa Das, Colorado School of Mines

In continuous casting, argon gas is injected to prevent nozzle clogging, which can affect the flow pattern and may be captured into the steel shell resulting in internal and surface defects in final steel products. Three-dimensional multiphase-flow models are applied to quantify the flow pattern, pressure distribution, bubble transport and capture in a continuous slab caster. The computational model is validated with recent plant nail board measurements, and the bubble capture locations and size distributions are compared between wide and narrow face steel shells to identify predominant bubble capture locations and investigate the underlying mechanisms.