Buoyant dielectric testing particles in turbulent convective flows are subject to periods where stickings and flights alternate randomly, due to the appearance of vortices of different amplitudes. The alternating behaviour can be seen as an oscillating motion with random period. By using measurements from dielectric testing particles in Nematic Liquid Crystal films under electro-convective turbulence, we investigate the phenomenon of sign-singularity in the random oscillating motion by measuring the cancellation exponents in different convective regimes.

Sign-singular measures in random fields: an example from dielectric testing particles in electro-convective turbulence

CARBONE, Vincenzo;N. SCARAMUZZA;VERSACE, Consolato Carlo
1995-01-01

Abstract

Buoyant dielectric testing particles in turbulent convective flows are subject to periods where stickings and flights alternate randomly, due to the appearance of vortices of different amplitudes. The alternating behaviour can be seen as an oscillating motion with random period. By using measurements from dielectric testing particles in Nematic Liquid Crystal films under electro-convective turbulence, we investigate the phenomenon of sign-singularity in the random oscillating motion by measuring the cancellation exponents in different convective regimes.
1995
Turbulent flows, convection, and heat transfer ; Theory and models of chaotic systems
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/124694
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