The turbulent heat transfer in the mushy zone caused by impinging of molten steel jets slab mold has a significant effect on growth solidified shell and formation zone, as well quality products. In present work, Peclet number (Pem) is proposed to analyze influence define boundary zone. A three-dimensional mathematical model based enthalpy-porosity method been established predict flow, solidific...

Experiments study large-scale pattern formation during the growth of ammonium chloride (NH4Cl) from solution in a thin (Hele-Shaw) geometry. In particular a solid-liquid mixture ("mushy layer") forms in which growing solid NH4Cl crystals form a solid network interspersed with liquid. There are different ways that the mushy layer can be formed, however. If the cell is heated from below and coole...

The constitutive behavior of the mushy zone represents stress–strain relationship solidifying alloys, which is essential for prediction hot tearing, residual stress, and distortion during casting process. To determine rheological properties Al alloy zones, an integrated method that combines a phase field model with coupled Eulerian–Lagrangian (CEL) approach was developed. morphologies evolution...

The high undercooling of binary Co-4.54%Sn alloy has a significant influence on its microstructural characteristics and physical properties. Here, we report that the dendritic growth properties broad-temperature-range remarkably depends during rapid solidification. maximum attains 208 K at molten state, velocity is quite sluggish in highly undercooled liquid because it broad solidification rang...

Roger White’s “Evidential Symmetry and Mushy Credence” brings up a number of interesting points in defence of the Principle of Indifference (POI). My goal in this short paper is to highlight a few of these points for added attention, to draw connections between the issues White sees with mushy credences and some technical issues in the study of vagueness, and to present a possible response to t...

We analyze numerically the mechanisms controlling the spacing of chimneys--channels devoid of solid--in two-dimensional mushy layers formed by solidifying a binary alloy. Chimneys are the principal conduits through which buoyancy effects material transport out of the mushy layer and into the liquid from which it formed. Experiments show a coarsening of chimney spacing; we pursue the hypothesis ...

Complex physical processes that affect the solidification of multicomponent fluids have implications for materials science and geophysics.