A Numerical Study of 3D Turbulent Melt Flow and Solidification in a Direct Chill Slab Caster with an Open-Top Melt Feeding System

A Numerical Study of 3D Turbulent Melt Flow and Solidification in a Direct Chill Slab Caster with a Porous Combo Bag Melt Distributor

“…The high conductivity solid matrix of the porous bottom plate was considered to be in local thermal equilibrium with the surrounding melt. The 3D general governing transport equations along with the corresponding boundary conditions for turbulent melt velocity and enthalpy at steady state are already provided and discussed in [10]. The turbulent flow in the porous media is a current active area of research and there are still significant controversies concerning the model equations as well as the empirical values of the turbulent constants used in those equations.…”

“…All the assumptions listed in [10] are applicable for this study. In addition, the following two assumptions related to the porous plate are also invoked: a.…”

“…A relatively higher value of permeability was used in the present study due to the lack of actual data on stainless steel filter for filtering high temperature molten aluminum. The solution procedure adopted, the grid independency tests made, as well as the code validation study carried out are all discussed in [10]. To conserve space, the above studies are not provided here.…”

“…The mentioned alloy has an excellent corrosion resistance property and is highly ductile. The physical properties of the AA-1050 alloy are provided in Table 1 of the accompanying paper [10].…”

“…(1)-(5)] were non-dimensionalized with the same dimensional variables as the transport equations for the melt discussed in [10]. The final forms of the transport equations for the porous media were cast in the general form with appropriate coefficients, and source and sink terms [23].…”