Results 101 to 110 of about 33,802 (217)

Conditional vorticity budget of coherent and incoherent flow contributions in fully developed homogeneous isotropic turbulence

open access: yes, 2012
We investigate the conditional vorticity budget of fully developed three-dimensional homogeneous isotropic turbulence with respect to coherent and incoherent flow contributions.
Farge, Marie   +4 more
core   +5 more sources

Eddy diffusivity in homogeneous isotropic turbulence

open access: yes, 2019
We use the recently developed Macroscopic Forcing Method [Mani and Park, Physical Review Fluids, 6:054607, 2021] to compute the scale-dependent eddy diffusivity characterizing ensemble-averaged scalar and momentum transport in incompressible homogeneous isotropic turbulence. For scales larger than the energy containing eddies, eddy diffusivity is found
Shirian, Yasaman, Mani, Ali
openaire   +2 more sources

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

Statistics of Finite Scale Local Lyapunov Exponents in Fully Developed Homogeneous Isotropic Turbulence

open access: yesAdvances in Mathematical Physics, 2018
The present work analyzes the statistics of finite scale local Lyapunov exponents of pairs of fluid particles trajectories in fully developed incompressible homogeneous isotropic turbulence.
Nicola de Divitiis
doaj   +1 more source

Solutions of Conformal Turbulence on a Half Plane

open access: yes, 1993
Exact solutions of conformal turbulence restricted on a upper half plane are obtained. We show that the inertial range of homogeneous and isotropic turbulence with constant enstrophy flux develops in a distant region from the boundary.
Chung, B. K.   +3 more
core   +2 more sources

What is the smallest physically acceptable scale for 1D turbulence schemes ?

open access: yesFrontiers in Earth Science, 2014
In numerical weather prediction (NWP) models, at mesoscale, the subgrid convective boundary-layer turbulence is dominated by the uni-directional (1D) vertical thermal production.
Rachel eHonnert, Valéry eMasson
doaj   +1 more source

Homogeneous and Isotropic Turbulence: a short survey on recent developments

open access: yes, 2015
We present a detailed review of some of the most recent developments on Eulerian and Lagrangian turbulence in homogeneous and isotropic statistics. In particular, we review phenomenological and numerical results concerning the issue of universality with ...
Benzi, R., Biferale, L.
core   +1 more source

The effects of particle loading on turbulence structure and modelling [PDF]

open access: yes
The objective of the present research was to extend the Direct Numerical Simulation (DNS) approach to particle-laden turbulent flows using a simple model of particle/flow interaction.
Eaton, J. K., Squires, Kyle D.
core   +1 more source

Effects of axisymmetric contractions on turbulence of various scales [PDF]

open access: yes
Digitally acquired and processed results from an experimental investigation of grid generated turbulence of various scales through and downstream of nine matched cubic contour contractions ranging in area ratio from 2 to 36, and in length to inlet ...
Drubka, R. E.   +2 more
core   +1 more source

Orifice versus Converging-Nozzle Grid Turbulence: A Wavelet Perspective

open access: yesApplied Sciences
Grids such as perforated plates are of fundamental importance in flow turbulence study and are commonly utilised to promote mixing. An orificed perforated plate (OPP) and its reversed counterpart, the converging-nozzle perforated plate (CNPP), were ...
Ankit Raj, David S.-K. Ting, Yang Yang
doaj   +1 more source

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