نتایج جستجو برای: turbulent models

تعداد نتایج: 935106  

1996
L. Biferale

Random dynamical models obtained as a perturbation of the GOY (GledzerOhkitani-Yamada) shell model for three-dimensional turbulence are defined. Both static (time-independent) and dynamical scaling properties of the randomly perturbed model are studied. The random static-inviscid manifold, in contrast to the dynamical evolution, does not show intermittent scaling laws. This behavior is linked t...

2006
GEORGE H. GOEDECKE D. KEITH WILSON VLADIMIR E. OSTASHEV

Here, we contribute to the continuing development of the quasi-wavelet (QW) model of turbulence that is currently being used in simulations of sound propagation and scattering in the turbulent atmosphere. We show that a QW model of temperature fluctuations exists for any physically reasonable temperature spectrum of isotropic homogeneous turbulence, including the widely used von Kármán spectrum...

Journal: :Quarterly of Applied Mathematics 1987

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 1990

2017
Elena Floriani Guido Ciraolo Philippe Ghendrih Yanick Sarazin Ricardo Lima R. Lima Y. Sarazin

The interplay between turbulent bursts and transport barriers in analyzed with a simplified model of interchange turbulence in the Scrape-Off Layer of magnetically confined plasmas. The turbulent bursts spread into the transport barriers, and, depending on the competing magnitude of the burst and stopping capability of the barrier can burn through. Two models of transport barriers are presented...

1998
P. A. Yecko Z. Kolláth

A one-dimensional turbulent convection model in the form of a time-dependent diffusion equation for the turbulent energy is incorporated into our numerical pulsation code. The effect of turbulent convection on the structural rearrangement of the static equilibrium star is taken into account, and the linear eigenvalues (periods and growth-rates) for the complete turbulent convective nonadiabatic...

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