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Bifurcation and ''strange'' behavior in instability saturation by nonlinear three-wave mode coupling

Journal Article · · Phys. Fluids; (United States)
DOI:https://doi.org/10.1063/1.863116· OSTI ID:5281460
A simple model of nonlinear saturation of an unstable mode is studied. The model consists of the resonant three-wave coupling equations with the highest frequency wave linearly unstable and the two lower frequency waves damped. As the damping of the stable waves is increased, the solutions go through an interesting succession of qualitative changes, including bifurcations to increasingly complex periodic solutions and the appearance of apparently chaotic (i.e., aperiodic) solutions. These qualitative features are shown to be explainable on the basis of a one-dimensional mapping which is numerically derivable from the original system of differential equations.
Research Organization:
Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853
OSTI ID:
5281460
Journal Information:
Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 23:6; ISSN PFLDA
Country of Publication:
United States
Language:
English

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