Title: Lattice Boltzmann simulation of mass transfer in thermally driven cavity flows

Authors: Huidan Yu, Jinsuo Zhang, Ning Li

Addresses: Computer, Computation, and Science Division, Center for Nonlinear Studies, Los Alamos National Laboratory, USA. ' Decision Applications Division, Los Alamos National Laboratory, USA. ' Material Physics and Application Division, Los Alamos National Laboratory, USA

Abstract: We study mass transfer in 2D thermally driven cavity using lattice Boltzmann method. Simulations are performed to investigate various effects on enhancement of oxygen mass transfer in lead/lead bismuth eutectic. It is shown that oxygen transfer is dominated by convection although diffusion plays a role. Comparative studies demonstrate that side heating and top-cooling configuration is more efficient than side-heating/cooling and oxygen transfers more rapidly in a square than rectangular cavity with same area. This work supplies supportive information for developing active oxygen control technique in experiments to prevent or reduce corrosion in liquid metal cooled nuclear reactors.

Keywords: lattice Boltzmann method; LBM; Boussinesq equations; thermally driven cavity flows; heat transfer; oxygen transfer; mass transfer; natural convection; simulation; bismuth eutectic; diffusion; active oxygen control; corrosion; liquid metal cooled reactors; nuclear reactors.

DOI: 10.1504/PCFD.2008.018091

Progress in Computational Fluid Dynamics, An International Journal, 2008 Vol.8 No.1/2/3/4, pp.206 - 212

Available online: 30 Apr 2008 *

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