A FEM model for the calculation of heat and fluid flows in DC casting of aluminum slabs
- Hydro Aluminium, Sunndalsoera (Norway)
- Inst. for Energiteknikk, Kjeller (Norway)
A 3D FEM model for the solution of time dependent incompressible flows with solidification and natural convection is presented. In the mush zone the momentum equations are modified with a Darcy type source term dependent on the liquid fraction. The numerical method applies a fractional step method for the dynamic Navier Stokes equations and the Streamline Upwind Petrov-Galerkin (SUPG) method for mixed diffusion and convection in the momentum and energy equations. The model is used to simulate the stationary period during DC-casting of a full size commercial rolling ingot, with a nozzle/filterbag distributor system. Comparisons with measured temperatures in liquid aluminum during casting are made, as well as with DAS measurements. Influence of natural convection turbulence by the LRN {kappa}-{var_epsilon} model and permeability of the mushy zone are studied.
- OSTI ID:
- 227807
- Report Number(s):
- CONF-9509118-; ISBN 0-87339-297-3; TRN: IM9622%%84
- Resource Relation:
- Conference: 7. Conference on modeling of casting, welding and advanced solidification processes, London (United Kingdom), 10-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Modeling of casting, welding and advanced solidification processes, 7; Cross, M. [ed.] [Univ. of Greenwich, London (United Kingdom). Centre for Numerical Modeling and Process Analysis]; Campbell, J. [ed.] [Univ. of Birmingham (United Kingdom). School of Metallurgy and Materials]; PB: 1030 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
ALUMINIUM ALLOYS
CASTING
MATHEMATICAL MODELS
MAGNESIUM ADDITIONS
IRON ADDITIONS
SOLIDIFICATION
CONVECTION
DARCY LAW
NAVIER-STOKES EQUATIONS
SIMULATION
TURBULENCE
PERMEABILITY
THREE-DIMENSIONAL CALCULATIONS
REYNOLDS NUMBER
BOUNDARY CONDITIONS
TEMPERATURE GRADIENTS
DENDRITES
EXPERIMENTAL DATA