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Coupled finite element–lattice Boltzmann analysis.

Haslam, I. W. and Crouch, R. S. and Seaïd, M. (2008) 'Coupled finite element–lattice Boltzmann analysis.', Computer methods in applied mechanics and engineering., 197 (51-52). 4505-4511 .

Abstract

A coupled finite element (FE) and lattice Boltzmann (LB) numerical scheme to model the deformation of a porous solid through which fluid flows could offer an attractive solution strategy. As a precursor to a complete simulator, we review the two methodologies and show an initial proof of concept for a coupling method solving one- and multi-dimensional diffusion problems. The accuracy and computational efficiency of the combined method is presented and compared for simple problems that offer analytical solutions. The effects of changing temporal discretisations and diffusivities at the FE–LB interface, as well as iterating towards convergence, are described. The results demonstrate for the first time a transfer of state variables across the FE–LB interface for this class of problems.

Item Type:Article
Keywords:Finite element method, Lattice Boltzmann scheme, Diffusion problems, Coupling techniques.
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1016/j.cma.2008.04.002
Record Created:27 Oct 2011 12:50
Last Modified:02 Nov 2011 09:42

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