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A Five-Mode System of the Navier-Stokes Equations on a Torus 被引量:1

A Five-Mode System of the Navier-Stokes Equations on a Torus
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摘要 A five-mode truncation of the Navier-Stokes equations for a two-dimensional incompressible fluid on a torus is studied. Its stationary solutions and stability are presented;the existence of attractor and the global stability of the system are discussed. The whole process, which shows a chaos behavior approached through an involved sequence of bifurcations with the changing of Reynolds number, is simulated numerically. Based on numerical simulation results of bifurcation diagram, Lyapunov exponent spectrum, Poincare section, power spectrum and return map of the system, some basic dynamical behavior of the new chaos system are revealed. A five-mode truncation of the Navier-Stokes equations for a two-dimensional incompressible fluid on a torus is studied. Its stationary solutions and stability are presented;the existence of attractor and the global stability of the system are discussed. The whole process, which shows a chaos behavior approached through an involved sequence of bifurcations with the changing of Reynolds number, is simulated numerically. Based on numerical simulation results of bifurcation diagram, Lyapunov exponent spectrum, Poincare section, power spectrum and return map of the system, some basic dynamical behavior of the new chaos system are revealed.
作者 Heyuan Wang Heyuan Wang(College of Sciences, Liaoning University of Technology, Jinzhou, China)
机构地区 College of Sciences
出处 《Journal of Applied Mathematics and Physics》 2016年第7期1245-1253,共9页 应用数学与应用物理(英文)
关键词 The Navier-Stokes Equations Strange Attractor Lyapunov Function BIFURCATION CHAOS The Navier-Stokes Equations Strange Attractor Lyapunov Function Bifurcation Chaos
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