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N.A. Magnitskii Bifurcations and chaos in one model of an autocatalytic chemical process with feedback |
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Abstract. The paper presents an analytical and numerical analysis of the transition to chaos in the model of an autocatalytic chemical process with feedback, which is a three-dimensional system of nonlinear ordinary differential equations. The conditions for the birth of a limit cycle in the system as a result of Andronov-Hopf bifurcation are found. It is shown numerically that the transition to chaos in the system is carried out in full accordance with the universal bifurcation theory of Feigenbaum-Sharkovsky-Magnitskii (FShM) through the subharmonic and initial stage of the homoclinic cascades of bifurcations of stable limit cycles. Keywords: autocatalytic reactions, cascades of bifurcations, attractors, chaos. PP. 49-53. DOI: 10.14357/20790279190205 References 1. Peng B., Scott S. K., Showalter K. Period Doubling and Chaos in a Three-Variable Autocatalator. J. Phys. Chem. 1990, 94. P.5243-5246. 2. Gray P., Scott S. K. Autocatalytic Reactions in the Isothermal Continuous Stirred Tank Reactor. Chemical Engineering Science, 1984, 39 (6). P. 1087-1097. 3. Magnitskii N.A., Sidorov S.V. New methods for chaotic dynamics (monograph). Singapore: World Scientific, 2006. 363 p. 4. Magnitskii N.A. Teoriya dinamicheskogo khaosa [Theory of dynamical chaos]. M.: Lenand, 2011. 320s. 5. Magnitskii N.A. Universality of Transition to Chaos in All Kinds of Nonlinear Differential Equations. Chapter in Nonlinearity, Bifurcation and Chaos – Theory and Applications. INTECH, 2012.P.133-174. 6. Evstigneev N. M.,Magnitskii N.A. Numerical analysis of laminar-turbulent bifurcation scenarios in Kelvin-Helmholtz and Rayleigh-Taylor instabilities for compressible flow. Chapter in Turbulence. INTECH,2017.P.29-59. 7. Magnitskii N.A. Bifurcation Theory of Dynamical Chaos. Chapter in Chaos Theory. INTECH, 2018, P. 197-215.
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