scholarly journals Study on preferential concentration of inertial particles in homogeneous isotropic turbulence via big-data techniques

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
M. Obligado ◽  
A. Cartellier ◽  
A. Aliseda ◽  
T. Calmant ◽  
N. de Palma
Keyword(s):  
Big Data ◽  
Isotropic Turbulence ◽  
Inertial Particles ◽  
Homogeneous Isotropic Turbulence ◽  
Preferential Concentration

Particle Dispersion in Fine Scales of Homogeneous Isotropic Turbulence

2007 ◽  
Author(s):  
M. Sato ◽  
M. Tanahashi ◽  
T. Miyauchi
Keyword(s):  
Isotropic Turbulence ◽  
Major Axis ◽  
Stokes Number ◽  
High Energy ◽  
Energy Dissipation Rate ◽  
Particle Dispersion ◽  
Fine Scale ◽  
Number Density ◽  
Homogeneous Isotropic Turbulence ◽  
Preferential Concentration

Direct numerical simulations of homogeneous isotropic turbulence laden with particles have been conducted to clarify the relationship between particle dispersion and coherent fine scale eddies in turbulence. Dispersion of 106 particles are analyzed for several particle Stokes numbers. The spatial distributions of particles depend on their Stokes number, and the Stokes number that causes preferential concentration of particles is closely related to the time scale of coherent fine scale eddies in turbulence. On the plane perpendicular to the rotating axes of fine scale eddies, number density of particle with particular Stokes number is low at the center of the fine scale eddy, and high in the regions with high energy dissipation rate around the eddy. The maximum number density can be observed at about 1.5 to 2.0 times the eddy radius on the major axis of the fine scale eddy.

Particle-resolved direct numerical simulation of collisions of bidisperse inertial particles in a homogeneous isotropic turbulence

2020 ◽  
Vol 376 ◽  
pp. 72-79
Author(s):  
Songying Chen ◽  
Xiaohang Chen ◽  
Dongdong Wan ◽  
Xun Sun ◽  
Li Ji ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Isotropic Turbulence ◽  
Inertial Particles ◽  
Homogeneous Isotropic Turbulence

An efficient parallel simulation of interacting inertial particles in homogeneous isotropic turbulence

2013 ◽  
Vol 242 ◽  
pp. 809-827 ◽  
Author(s):  
Ryo Onishi ◽  
Keiko Takahashi ◽  
J.C. Vassilicos
Keyword(s):  
Isotropic Turbulence ◽  
Parallel Simulation ◽  
Inertial Particles ◽  
Homogeneous Isotropic Turbulence

Two statistical models for predicting collision rates of inertial particles in homogeneous isotropic turbulence

2003 ◽  
Vol 15 (10) ◽  
pp. 2995 ◽  
Author(s):  
Leonid I. Zaichik ◽  
Olivier Simonin ◽  
Vladimir M. Alipchenkov
Keyword(s):  
Statistical Models ◽  
Isotropic Turbulence ◽  
Inertial Particles ◽  
Homogeneous Isotropic Turbulence

scholarly journals Settling velocity of small inertial particles in homogeneous isotropic turbulence from high-resolution DNS

2016 ◽  
Vol 83 ◽  
pp. 217-231 ◽  
Author(s):  
Bogdan Rosa ◽  
Hossein Parishani ◽  
Orlando Ayala ◽  
Lian-Ping Wang
Keyword(s):  
High Resolution ◽  
Settling Velocity ◽  
Isotropic Turbulence ◽  
Inertial Particles ◽  
Homogeneous Isotropic Turbulence
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