Results 191 to 200 of about 70,297 (251)

Incompressible Homogeneous Isotropic Turbulence

, 2018
This chapter is devoted to isotropic incompressible turbulence. The main features of related theories are discussed, along with the recent results: energy spectrum and two-point correlations and related models, closures for non-linear terms in both physical and Fourier space, theories for grid turbulence decay including fractal grid case, non ...
P. Sagaut, C. Cambon
semanticscholar   +2 more sources

Reynolds number dependence of heavy particles clustering in homogeneous isotropic turbulence

Physical Review Fluids, 2020
In homogeneous isotropic turbulence, the degree of heavy particle clustering is reduced with increasing Taylor Reynolds number (${R}_{\ensuremath{\lambda}}$) for 52 \ensuremath{\le} ${R}_{\ensuremath{\lambda}}$ \ensuremath{\le} 139 when the Stokes number
Xiangjun Wang, M. Wan, Yan Yang, Lianping Wang, Shiyi Chen   +4 more
semanticscholar   +1 more source

Direct numerical simulations of forced homogeneous isotropic turbulence in a dense gas

, 2020
Direct Numerical Simulations (DNS) of forced homogeneous isotropic turbulence in a dense gas (FC-70), accurately described by a complex EoS, are computed for a turbulent Mach number of 0.8.
A. Giauque, C. Corre, A. Vadrot
semanticscholar   +1 more source

Homogeneous isotropic turbulence in dilute polymers

Journal of Fluid Mechanics, 2005
The modification of the turbulent cascade by polymeric additives is addressed by direct numerical simulations of homogeneous isotropic turbulence of a FENE-P fluid. According to the appropriate form of the Kármán–Howarth equation, two kinds of energy fluxes exist, namely the classical transfer term and the coupling with the polymers.
DE ANGELIS, ELISABETTA, Casciola C. M., Benzi R., Piva R.   +3 more
openaire   +5 more sources

Identifying the tangle of vortex tubes in homogeneous isotropic turbulence

Journal of Fluid Mechanics, 2019
We extend the vortex-surface field (VSF), whose isosurface is a vortex surface consisting of vortex lines, to identify vortex tubes and sheets in homogeneous isotropic turbulence.
S. Xiong, Yue Yang
semanticscholar   +1 more source

Direct numerical simulation of decaying homogeneous isotropic turbulence — numerical experiments on stability, consistency and accuracy of distinct lattice Boltzmann methods

International Journal of Modern Physics C, 2019
Stability, consistency and accuracy of various lattice Boltzmann schemes are investigated by means of numerical experiments on decaying homogeneous isotropic turbulence (DHIT).
M. Haussmann, Stephan Simonis, H. Nirschl, M. Krause   +3 more
semanticscholar   +1 more source

Scale invariance in finite Reynolds number homogeneous isotropic turbulence

Journal of Fluid Mechanics, 2019
The problem of homogeneous isotropic turbulence (HIT) is revisited within the analytical framework of the Navier–Stokes equations, with a view to assessing rigorously the consequences of the scale invariance (an exact property of the Navier–Stokes ...
L. Djenidi, R. Antonia, S. Tang
semanticscholar   +1 more source

Particles-turbulence interaction in stationary, homogeneous, isotropic turbulence

International Journal of Multiphase Flow, 2000
Abstract A physical model for the dynamics of a dispersion of solid spherical particles in an incompressible viscous fluid is outlined and used to calculate the turbulence modulation in a stationary, homogeneous and isotropic turbulent flow with particles.
G Ooms, G.H Jansen
openaire   +1 more source

Homogeneous and Isotropic Turbulence

2015
The study of homogeneous and isotropic turbulence is very rewarding for two reasons. On the one hand, it is possible to do an important part of it analytically, and on the other hand, the smallest turbulent structures in most turbulent flows have an almost isotropic behaviour.
Christophe Bailly, Geneviève Comte-Bellot   +1 more
openaire   +1 more source

Particle behavior in homogeneous isotropic turbulence

Acta Mechanica Sinica, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
He, Zhu, Liu, Zhaohui, Chen, Sheng, Weng, Lei, Zheng, Chuguang   +4 more
openaire   +1 more source