Modulation of isotropic turbulence by particles of Taylor length-scale size

F Lucci, A Ferrante, S Elghobashi - Journal of Fluid Mechanics, 2010 - cambridge.org
This study investigates the two-way coupling effects of finite-size solid spherical particles on
decaying isotropic turbulence using direct numerical simulation with an immersed boundary …

Is Stokes number an appropriate indicator for turbulence modulation by particles of Taylor-length-scale size?

F Lucci, A Ferrante, S Elghobashi - Physics of Fluids, 2011 - pubs.aip.org
It has been established both numerically and experimentally [see, eg, A. Ferrante and SE
Elghobashi,“On the physical mechanisms of two-way coupling in particle-laden isotropic …

Direct particle–fluid simulation of Kolmogorov-length-scale size particles in decaying isotropic turbulence

L Schneiders, M Meinke, W Schröder - Journal of Fluid Mechanics, 2017 - cambridge.org
The modulation of decaying isotropic turbulence by 45 000 spherical particles of
Kolmogorov-length-scale size is studied using direct particle–fluid simulations, ie the flow …

The effect of particle density in turbulent channel flow laden with finite size particles in semi-dilute conditions

W Fornari, A Formenti, F Picano, L Brandt - Physics of Fluids, 2016 - pubs.aip.org
We study the effect of varying the mass and volume fraction of a suspension of rigid spheres
dispersed in a turbulent channel flow. We performed several direct numerical simulations …

The influence of particle inertia on the two-way coupling and modification of isotropic turbulence by microparticles

OA Druzhinin - Physics of Fluids, 2001 - pubs.aip.org
The objective of this paper is to examine the modulation of isotropic decaying turbulence by
particles whose diameter is smaller than the Kolmogorov length scale, and their response …

A numerical study of the modulation of isotropic turbulence by suspended particles

S Sundaram, LR Collins - Journal of Fluid Mechanics, 1999 - cambridge.org
Direct numerical simulations of a turbulent fluid laden with finite-sized particles are
performed. The computations, on a 1283 grid along with a maximum of 262 144 particles …

Direct numerical simulation of turbulence modulation by particles in isotropic turbulence

M Boivin, O Simonin, KD Squires - Journal of Fluid Mechanics, 1998 - cambridge.org
The modulation of isotropic turbulence by particles has been investigated using direct
numerical simulation (DNS). The particular focus of the present work is on the class of dilute …

Shape effects on turbulent modulation by large nearly neutrally buoyant particles

G Bellani, ML Byron, AG Collignon… - Journal of Fluid …, 2012 - cambridge.org
We investigate dilute suspensions of Taylor-microscale-sized particles in homogeneous
isotropic turbulence. In particular, we focus on the effect of particle shape on particle–fluid …

On the physical mechanisms of two-way coupling in particle-laden isotropic turbulence

A Ferrante, S Elghobashi - Physics of fluids, 2003 - pubs.aip.org
The objective of the present study is to analyze our recent direct numerical simulation (DNS)
results to explain in some detail the main physical mechanisms responsible for the …

Particle response and turbulence modification in isotropic turbulence

KD Squires, JK Eaton - Physics of Fluids A: Fluid Dynamics, 1990 - pubs.aip.org
The effect of turbulence on particle concentration fields and the modification of turbulence by
particles has been investigated using direct numerical simulations of isotropic turbulence …