Abstract

Finite systems of deterministic ordinary nonlinear differential equations may be designed to represent forced dissipative hydrodynamic flow. Solutions of these equations can be identified with trajectories in phase space. For those systems with bounded solutions, it is found that nonperiodic solutions are ordinarily unstable with respect to small modifications, so that slightly differing initial states can evolve into considerably different states. Systems with bounded solutions are shown to possess bounded numerical solutions. A simple system representing cellular convection is solved numerically. All of the solutions are found to be unstable, and almost all of them are nonperiodic. The feasibility of very-long-range weather prediction is examined in the light of these results.

Keywords

Bounded functionDissipative systemOrdinary differential equationNonlinear systemFlow (mathematics)Simple (philosophy)MathematicsMathematical analysisRange (aeronautics)Applied mathematicsPhysicsDifferential equationMechanicsThermodynamics

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Publication Info

Year
1963
Type
article
Volume
20
Issue
2
Pages
130-141
Citations
18784
Access
Closed

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Edward N. Lorenz (1963). Deterministic Nonperiodic Flow. Journal of the Atmospheric Sciences , 20 (2) , 130-141. https://doi.org/10.1175/1520-0469(1963)020<0130:dnf>2.0.co;2

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DOI
10.1175/1520-0469(1963)020<0130:dnf>2.0.co;2