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Multiscaling analysis of a slowly varying anaerobic digestion model

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We construct the slowly varying limiting state solutions to a nonlinear dynamical system for anaerobic digestion with Monod‐based kinetics involving slowly varying model parameters arising from slow environmental variation. The… Click to show full abstract

We construct the slowly varying limiting state solutions to a nonlinear dynamical system for anaerobic digestion with Monod‐based kinetics involving slowly varying model parameters arising from slow environmental variation. The advantage of these approximate solutions over numerical solutions is their applicability to a wide range of parameter values. We use these limiting state solutions to develop analytic approximations to the full nonlinear system by applying a multiscaling technique. The approximate solutions are shown to compare favorably with numerical solutions.

Keywords: anaerobic digestion; model; multiscaling analysis; analysis slowly; slowly varying

Journal Title: Mathematical Methods in the Applied Sciences
Year Published: 2020

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