Lyapunov exponents of heavy particles in turbulence

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Lyapunov exponents of heavy particles in turbulence

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The motion of heavy particles in isotropic turbulence is investigated using direct numerical simulation. The statistics related to the velocity and acceleration of heavy particles for a wide range of Stokes numbers, defined as the ratio of the particle response time to the Kolmogorov time scale of turbulence (St=tau_{p}/tau_{eta}) , are investigated. A particular emphasis is placed on the stati...

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construction of vector fields with positive lyapunov exponents

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ژورنال

عنوان ژورنال: Physics of Fluids

سال: 2006

ISSN: 1070-6631,1089-7666

DOI: 10.1063/1.2349587