Zobrazeno 1 - 10
of 640
pro vyhledávání: '"Meneveau, C."'
Publikováno v:
Journal of Fluid Mechanics vol. 980, A42, 2024
Two common definitions of the spatially local rate of kinetic energy cascade at some scale $\ell$ in turbulent flows are (i) the cubic velocity difference term appearing in the generalized Kolmogorov-Hill equation (GKHE) (structure function approach)
Externí odkaz:
http://arxiv.org/abs/2307.10568
Publikováno v:
vol. 973, R6, 2023
Based on a generalized local Kolmogorov-Hill equation expressing the evolution of kinetic energy integrated over spheres of size $\ell$ in the inertial range of fluid turbulence, we examine a possible definition of entropy and entropy generation for
Externí odkaz:
http://arxiv.org/abs/2307.11311
Publikováno v:
Phys. Rev. Lett. 132, 164001 , 2024
We study fluctuations of the local energy cascade rate $\Phi_\ell$ in turbulent flows at scales ($\ell$) in the inertial range. According to the Kolmogorov refined similarity hypothesis (KRSH), relevant statistical properties of $\Phi_\ell$ should de
Externí odkaz:
http://arxiv.org/abs/2307.06546
Deep operator networks (DeepONets) are trained to predict the linear amplification of instability waves in high-speed boundary layers and to perform data assimilation. In contrast to traditional networks that approximate functions, DeepONets are desi
Externí odkaz:
http://arxiv.org/abs/2105.08697
By analyzing the Karman-Howarth equation for filtered velocity fields in turbulent flows, we show that the two-point correlation between filtered strain-rate and subfilter stress tensors plays a central role in the evolution of filtered-velocity corr
Externí odkaz:
http://arxiv.org/abs/2006.02280
Publikováno v:
Journal of Turbulence 19.2 (2018): 167-197
The effects of different filtering strategies on the statistical properties of the resolved-to-sub-filter scale (SFS) energy transfer are analyzed in forced homogeneous and isotropic turbulence. We carry out a priori analyses of statistical character
Externí odkaz:
http://arxiv.org/abs/1706.03219
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Phys. Fluids 20, 101504 (2008)
Modeling the velocity gradient tensor A along Lagrangian trajectories in turbulent flow requires closures for the pressure Hessian and viscous Laplacian of A. Based on an Eulerian-Lagrangian change of variables and the so-called Recent Fluid Deformat
Externí odkaz:
http://arxiv.org/abs/0712.0900
Autor:
Chevillard, L., Meneveau, C.
Publikováno v:
Physical Review Letters 97, 174501 (2006)
The local statistical and geometric structure of three-dimensional turbulent flow can be described by properties of the velocity gradient tensor. A stochastic model is developed for the Lagrangian time evolution of this tensor, in which the exact non
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606267