Statistical relaxation under nonturbulent chaotic flows: Non-Gaussian high-stretch tails of finite-time Lyapunov exponent distributions

Darin Beigie, Anthony Leonard, and Stephen Wiggins
Phys. Rev. Lett. 70, 275 – Published 18 January 1993
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Abstract

We observe that high-stretch tails of finite-time Lyapunov exponent distributions associated with interfaces evolving under a class of nonturbulent chaotic flows can range from essentially Gaussian tails to nearly exponential tails, and show that the non-Gaussian deviations can have a significant effect on interfacial evolution. This observation motivates new insight into stretch processes under chaotic flows.

  • Received 23 September 1992

DOI:https://doi.org/10.1103/PhysRevLett.70.275

©1993 American Physical Society

Authors & Affiliations

Darin Beigie, Anthony Leonard, and Stephen Wiggins

  • Center for Applied Mathematics and Theory Center, Cornell University, Ithaca, New York 14853
  • Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, California 91125
  • Department of Applied Mechanics, California Institute of Technology, Pasadena, California 91125

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Issue

Vol. 70, Iss. 3 — 18 January 1993

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