Results 171 to 180 of about 43,251 (230)

Compressible 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 ...
Pierre Sagaut, Claude Cambon
openaire   +2 more sources

Physics of Homogeneous Isotropic Turbulence

Russian Journal of Electrochemistry
John Newman, James Trainham
openaire   +2 more sources

Evolution of the velocity gradient invariants in homogeneous isotropic turbulence with an inverse energy cascade

The Physics of Fluids, 2023
An investigation of topological features of homogeneous isotropic turbulence with an inverse energy cascade is performed by using a direct numerical simulation (DNS).
Feng Liu, Zhuoyu Wu, Pengfei Lv, Wei Yang, Yi Zhou   +4 more
semanticscholar   +1 more source

Effect of long-range Coulomb repulsion on adhesive particle agglomeration in homogeneous isotropic turbulence

Journal of Fluid Mechanics, 2021
We conduct numerical investigations on the early-stage agglomeration of identically charged microparticles in homogeneous isotropic turbulence. The turbulent flow field is evolved by direct numerical simulation, and the adhesive discrete element method ...
X. Ruan, Sheng Chen, Shuiqing Li
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

Kármán–Howarth solutions of homogeneous isotropic turbulence

Journal of Fluid Mechanics, 2021
The Kármán–Howarth equation (KHEq) is solved using a closure model to obtain solutions of the second-order moment of the velocity increment, $S_2$ , in homogeneous isotropic turbulence (HIT). The results are in good agreement with experimental data for decaying turbulence and are also consistent with calculations based on the
L. Djenidi, R.A. Antonia
openaire   +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

LBM study of aggregation of monosized spherical particles in homogeneous isotropic turbulence

Chemical Engineering and Science, 2019
Direct numerical simulations of an aggregation system composed of monosized spherical particles in homogeneous isotropic turbulence have been performed using Lattice Boltzmann method (LBM).
Guichao Wang, D. Wan, Cheng Peng, Ke Liu, Lian-Ping Wang   +4 more
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