Numerical Simulation of Bubbles Expansion and Solidification of Metal Foams

Hai Hao; Mouhamadou Diop; Shan Yao; Xing Guo Zhang

doi:10.4028/www.scientific.net/MSF.654-656.1549

Paper Titles

Homogenisation of Cast Microstructures: Thermodynamic Calculation and Kinetic Simulation
p.1532

Modeling of Microstructure Development in a Continuously Solidified Immiscible Alloy
p.1536

Thermal Modeling of Direct Digital Melt-Deposition Processes
p.1540

Physical and Numerical Simulation of Flow and Temperature in Molten Pool during Strip Casting Process
p.1545

Numerical Simulation of Bubbles Expansion and Solidification of Metal Foams
p.1549

Physical Model of Aluminium Refining Process in the Batch and Continuous Reactors
p.1553

Modeling Study of the Influence of Subflux Controller of Turbulence on the Molten Steel Flow in Tundish
p.1557

Optimum Pass Design of Bar Rolling for Producing Bulk Ultrafine-Grained Steel by Numerical Simulation
p.1561

Numerical Simulation of Deformation during Hot Procedure for Large Hydraulic Turbine Runner Blade
p.1565

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Numerical Simulation of Bubbles Expansion and...

Numerical Simulation of Bubbles Expansion and Solidification of Metal Foams

Abstract:

Metal foams have both structural and functional properties, offer advantages in different fields such as automotive and aircraft etc., and thus gain more and more technical interest. In this study, a computational model is presented which allows the numerical simulation of the bubble expansion and solidification during metal foaming processes. Mathematical modelling of the different relevant physical properties and effects during the metal foam expansion and solidification is discussed in this paper. This model considers the broad variety of the complex boundary conditions, the simple and multiphase fluid flow with complex geometries, the stabilization of the foams, and the mutual interactions between the bubbles. The Navier-Stokes equation is applied to elucidate the fluid flows in the liquid and in the mushy zone. And the diffusion equation for the hydrogen transport, the distribution functions of the temperature, the density and kinetic equations are also be proposed and discussed.

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Materials Science Forum (Volumes 654-656)

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1549-1552

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https://doi.org/10.4028/www.scientific.net/MSF.654-656.1549

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Online since:

June 2010

Authors:

Hai Hao, Mouhamadou Diop, Shan Yao, Xing Guo Zhang

Keywords:

Bubble Expansion, Metal Foam, Modeling, Solidification

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