Homogenised model linking microscopic and macroscopic dynamics of a biofilm: Application to growth in a plug flow reactor

Abstract : We propose a new "hybrid" model for the simulation of biofilm growth in a plug flow bioreactor. Our approach consists in combining three scales: a microscopic one for the individual bacteria, a mesoscopic or "coarse-grained" one that homogenises at an intermediate scale the quantities relevant to the attachment/detachment process, and a macroscopic one in terms of substrate concentration. We compare our simulations with the numerical solutions of an existing partial differential equations model at the macroscopic scale.
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Chloé Deygout, Annick Lesne, Fabien Campillo, Alain Rapaport. Homogenised model linking microscopic and macroscopic dynamics of a biofilm: Application to growth in a plug flow reactor. Ecological Modelling, Elsevier, 2013, 250, pp.15-24. ⟨10.1016/j.ecolmodel.2012.10.020⟩. ⟨hal-00604377⟩

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