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1篇 您的检索式:作者名="S.G.Ayodele"
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1Lattice Boltzmann Modeling of Advection-Diffusion-Reaction Equations:Pattern Formation Under Uniform Differential Advection显示文摘A lattice Boltzmann model for the study of advection-diffusion-reaction(ADR)problems is proposed.Via multiscale expansion analysis,we derive from the LB model the resulting macroscopic equations.It is shown that a linear equilibrium distribution is sufficient to produce ADR equations within error terms of the order of the Mach number squared.Furthermore,we study spatially varying structures arising from the interaction of advective transport with a cubic autocatalytic reaction-diffusion process under an imposed uniform flow.While advecting all the present species leads to trivial translation of the Turing patterns,differential advection leads to flow induced instability characterized with traveling stripes with a velocity dependent wave vector parallel to the flow direction.Predictions from a linear stability analysis of the model equations are found to be in line with these observations.S.G.Ayodele D.Raabe F.Varnik 2013Communications in Computational Physics2013,13,3:0
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