Results 111 to 120 of about 70,297 (251)

Simulation of three-dimensional homogeneous isotropic turbulence using the moment-based lattice Boltzmann method and LES-lattice Boltzmann method

open access: yesJournal of Fluid Science and Technology, 2014
Three-dimensional homogeneous isotropic turbulence simulations are conducted using moment-based lattice Boltzmann method and the large-eddy simulation based lattice Boltzmann method.
Muhammad IZHAM   +2 more
doaj   +1 more source

Vortex stretching in a homogeneous isotropic turbulence

open access: yes, 2017
Stretching vortices whose sizes are in the inertial subrange of a homogeneous isotropic turbulence are picked up, and the geometric relations with the neighboring vortices whose scales are twice larger are studied.
M. Hirota   +3 more
semanticscholar   +1 more source

Higher-order dissipation in the theory of homogeneous isotropic turbulence

open access: yesJournal of Fluid Mechanics, 2016
The two-point theory of homogeneous isotropic turbulence is extended to source terms appearing in the equations for higher-order structure functions. For this, transport equations for these source terms are derived. We focus on the trace of the resulting
N. Peters   +5 more
semanticscholar   +1 more source

Energetic particle parallel diffusion in a cascading wave turbulence in the foreshock region [PDF]

open access: yesNonlinear Processes in Geophysics, 2007
We study parallel (field-aligned) diffusion of energetic particles in the upstream of the bow shock with test particle simulations. We assume parallel shock geometry of the bow shock, and that MHD wave turbulence convected by the solar wind toward the ...
F. Otsuka, Y. Omura, O. Verkhoglyadova
doaj  

An implicit factorized transformer with applications to fast prediction of three-dimensional turbulence

open access: yesTheoretical and Applied Mechanics Letters
Transformer has achieved remarkable results in various fields, including its application in modeling dynamic systems governed by partial differential equations.
Huiyu Yang   +3 more
doaj   +1 more source

Particles in Homogeneous Isotropic Turbulence: Clustering and Relative Influence of the Forces Exerted on Particles

open access: yesFluids
A combination of lattice Boltzmann method (LBM)-based computations and Lagrangian particle tracking simulations is presented to study the dispersion and clustering of inertial particles in a forced homogeneous and isotropic turbulent flow and to analyze ...
Hamid Bellache   +2 more
doaj   +1 more source

Psuedospectral calculation of shock turbulence interactions [PDF]

open access: yes
A Chebyshev-Fourier discretization with shock fitting is used to solve the unsteady Euler equations. The method is applied to shock interactions with plane waves and with a simple model of homogeneous isotropic turbulence.
Hussaini, M. Y.   +2 more
core   +1 more source

Effects of Discretization of Smagorinsky–Lilly Subgrid Scale Model on Large-Eddy Simulation of Stable Boundary Layers

open access: yesAtmosphere
Large-eddy simulation (LES) models are sensitive to numerical discretization because of the large fraction of resolved turbulent energy (>80%) and the strong non-linear interactions between resolved-scale fields with the turbulence subgrid scale (SGS ...
Jonas Banhos, Georgios Matheou
doaj   +1 more source

Fluctuation-induced forces in homogeneous isotropic turbulence

open access: yes, 2018
Understanding force generation in non-equilibrium systems is a significant challenge in statistical physics. We uncover a surprising fluctuation-induced force between two plates immersed in homogeneous isotropic turbulence using Direct Numerical Simulation. The force is a non-monotonic function of plate separation.
Spandan, Vamsi   +3 more
openaire   +2 more sources

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