A Numerical Simulation of Transport Phenomena During the Horizontal Single Belt Casting Process Using an Inclined Feeding System

Flow Instabilities in the Horizontal Single Belt Casting Process with an Inclined Feeding System

“…Figure 4 shows the modeling instabilities in the melt's falling film. In previous publications, 8,9) these instabilities in the melt falling film shown in Fig. 3 were regarded as emanating from turbulence within the tundish region.…”

“…They are the Phase Field method 5) and the Volume of Fluid (VOF) method. [6][7][8] As an industrial process, there are various features and several kinds of complicated transport phenomena co-existing. These include 1) the meniscus behavior, where the metal, air and moving cooling substrate co-exist; 2) shrinkage of the falling films driven by the forces of gravity and surface tension; 3) potential suction of the gas phase into the melt; 4) impingement between the melt film and flow obstacles, etc.…”

“…In the present paper, a two-dimensional mathematical model was first established, based on the Eulerian multiphase method. The resulting numerical predictions are compared using both the Phase Field method 5) and the VOF methods, [6][7][8] adopted by previous co-workers to evaluate the HSBC process. Then experiments were carried out on the HSBC pilot scale caster, in order to complement and validate simulated results.…”

“…9) The transfer process of melt from a headbox onto the horizontal moving belt occurs very locally, during which solidification can be ignored. 8) Thus, heat transfer is not critical to the current Eulerian multiphase model. With the current feeding system, there are two fluid phases, air and liquid metal.…”

“…where p is the static pressure, τ q is the q th phase stress-strain tensor, g is the acceleration due to the force of gravity, and F σ is the interfacial surface tension. 8) The interface momentum transfer between gas and liquid by drag forces is given in Eq. 3.…”