Universality of anisotropic fluctuations from numerical simulations of turbulent flows

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dc.creatorBiferale, L.
dc.creatorCalzavarini, E.
dc.creatorToschi, F.
dc.creatorTripiccione, R.
dc.date2003-02-14
dc.date.accessioned2026-07-07T05:34:33Z
dc.date.available2026-07-07T05:34:33Z
dc.descriptionWe present new results from a direct numerical simulation of a three dimensional homogeneous Rayleigh-Benard system (HRB), i.e. a convective cell with an imposed linear mean temperature profile along the vertical direction. We measure the SO(3)-decomposition of both velocity structure functions and buoyancy terms. We give a dimensional prediction for the values of the anisotropic scaling exponents in this Rayleigh-Benard systems. Measured scaling does not follow dimensional estimate, while a better agreement can be found with the anisotropic scaling of a different system, the random-Kolmogorov-flow (RKF). Our findings support the conclusion that scaling properties of anisotropic fluctuations are universal, i.e. independent of the forcing mechanism sustaining the turbulent flow.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/nlin/0302036
dc.identifierhttp://arxiv.org/abs/nlin/0302036
dc.identifierEurophysics Letters 64 4 (2003) 461
dc.identifierdoi:10.1209/epl/i2003-00233-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/80407
dc.subjectChaotic Dynamics
dc.titleUniversality of anisotropic fluctuations from numerical simulations of turbulent flows
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