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Numerical Simulation of a Gas-Stirred Ladle
H. Zambrano, A. Bencomo, L. Trujillo and L. Di G. Sigalotti
Abstract
In this paper we present three-dimensional, numerical simulations of the
turbulent recirculatory flow in a gas-stirred vessel. The physical model consists of
air injected in a water cylindrical vessel, corresponding to a one-seventh scale model
of an industrial 35 tons steel-making ladle. Plume development and recirculation is
investigated for air blowing through an eccentric porous plug placed at the bottom
of the vessel. The experimentally observed plume behaviour and the mixing process
due to recirculatory water motion within the ladle is qualitatively well reproduced
by the numerical simulations. When the airflow rate is increased, the intensity of
agitation and turbulence increases, thereby enhancing the mixing in the ladle.
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