An enthalpy-based lattice Boltzmann model for diffusion dominated solid–liquid phase transformation

Chatterjee, Dipankar ; Chakraborty, Suman (2005) An enthalpy-based lattice Boltzmann model for diffusion dominated solid–liquid phase transformation Physics Letters A, 341 (1-4). pp. 320-330. ISSN 0375-9601

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.physleta.2005.04.080

Abstract

An extended lattice Boltzmann (LB) formulation is developed for simulation of three-dimensional heat diffusion, coupled with solid–liquid phase transition aspects. Thermodynamic variables are obtained through the evolution equation of a single particle distribution function. Phase change aspects are tackled by an enthalpy-based approach. The proposed model is subsequently utilized to simulate a generic laser surface melting process and compared with the continuum model results obtained by solving the governing equation for energy transport. The comparison shows a potentiality of the developed LB method to solve phase change problems in a computationally effective and convenient manner.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Lattice Boltzmann Model (LBM); Phase Change; Enthalpy-Porosity; Three-Dimensional; Laser Melting
ID Code:101178
Deposited On:26 Dec 2016 07:31
Last Modified:26 Dec 2016 07:31

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