...Rajneesh Kumar; Pradeep Kumar Jha Purpose The purpose of this study is to explore how a time-varying electromagnetic stirring (EMS) affects the fluid flow and solidification behavior in a slab caster continuous casting mold. Further, the study of inclusion movements in the mold is carried out...

...Rajneesh Kumar; Pradeep Kumar Jha Purpose The purpose of this article is to numerically investigate the effect of casting speed on the fluid flow, solidification and inclusion motion under the influence of electromagnetic stirring (EMS) in the bloom caster mold with bifurcated submerged entry...

... has interested many researchers over the past few decades because of its high thermal energy density and constant operating temperature. The purpose of this paper is to provide a numerical study of the solidification process in a triplex tube heat exchanger containing phase change material (PCM) RT82...

... application. This paper aims to detail the code-to-code verification of a thermal numerical model for the Bridgman solidification process of alloys in a two-dimensional axisymmetric domain, against an established commercial code (ANSYS Fluent); the work is considered a confidence building step in model...

...Hani Sadrhosseini; Saed Bazkhane Purpose The purpose of the study is to present a simplified model to replace the complicated foaming simulations for investigating the liquid polyurethane behavior just before solidification. Design/methodology/approach This model is inspired from the traveling...

... relationships between the developing composition distribution and shrinkage pipe formation. Sailei Zhang can be contacted at: zhang210@purdue.edu © Emerald Group Publishing Limited 2014 Modeling Alloy castings Macrosegregation Shrinkage pipe Solidification Volume of fluid This paper...

.../value – As the present enthalpy based microscopic solidification model with melt convection is based on a framework similar to popularly used enthalpy models at the macroscopic scale, it lays the foundation to develop effective multiscale solidification. Pe_s=solutal...

... is very important on the thermal boundary during filling and solidification, to support practice, to improve the process and minimise the casting defects. Originality/value In this paper, a novel method is developed to calculate the heat transfer through the casting‐mould interface to the mould wall...

...Piyasak Damronglerd; Yuwen Zhang; Mo Yang Purpose The purpose of this paper is to solve solidification of liquid copper saturated in porous structure fabricated by sintered steel particles using a temperature‐transforming model (TTM). Design/methodology/approach The convection in the liquid...

...Mohamed Rady; Eric Arquis; Dominique Gobin; Benoît Goyeau Purpose This paper aims to tackle the problem of thermo‐solutal convection and macrosegregation during ingot solidification of metal alloys. Complex flow structures associated with the development of channels segregate and sharp gradients...

...Andrzej J. Nowak; Ryszard A. Białecki; Piotr Furmański; Jerzy Banaszek Purpose This paper aims to tackle the problem of some ambiguity of the momentum equation formulation in the commonly used macroscopic models of two‐phase solid/liquid region, developing during alloy solidification...

...Andrzej J. Nowak; Ryszard A. Białecki; Miha Založnik; Shihe Xin; Božidar Šarler Purpose This paper aims to point out the critical problems in numerical verification of solidification simulation codes and the complexity of the verification and to propose and apply a procedure of generalized...

.../methodology/approach A mathematical model for the numerical simulation of thermosolutal convection and macrosegregation in the solidification of multicomponent alloys is developed, in which the coupled macroscopic mass, momentum, energy and species conservation equations are solved. The conservation...

... and after solidification. Mould filling is described by the Navier‐Stokes equations discretized using the Galerkin finite element method. The free surface is followed using a front tracking procedure. A thermal stress analysis is carried out, assuming that a coupling exists between the thermal problem...

... be optimally designed to achieve a desired solidification pattern. The technique has been validated on two practical examples achieving a complex solidification pattern. The optimization process has been validated on the gravity die casting example shown in Figure 1. Figure 2 shows the finite element...

... to explain some of the concepts of object‐oriented thinking most useful to the finite element programmer, using as an example a C++ implementation of a heat transfer and solidification program. © MCB UP Limited 1999 Finite elements Heat transfer Programming Solidification Even...

... from the mould reject solutes in the liquid. The specific aim of this contribution is to calculate the thermal and physical state of continuously cast steel long products assuming a columnar solidification mode, taking into account the tip undercooling at the solidification front. A 2‐D heat transfer...

...S. Sundarraj; V.R. Voller Explains that segregation processes during the solidification of a binary alloy occur at two distinct length scales: on the microscopic length scale of the crystal interface, in the two‐phase mushy zone, segregation is controlled by solid state mass diffusion...

... of water in a cavity. The aspect ratio of the cavity has also been shown to have a significant influence on the results when the aspect ratio is less than 0.5. © MCB UP Limited 1996 Solidification Natural convection Density inversion Heat transfer Numerical methods INT. J. NUM. METH. HEAT...

...Tianhong Ouyang; Kumar K. Tamma Thermal solidification processes are an important concern in today’s manufacturing technology. Because of the complex geometric nature of real‐world problems, analytical techniques with closed‐form solutions are scarce and/or not feasible. As a consequence, various...