The development and application of a kinetic theory for modeling dispersed particle flows

MW Reeks - Journal of Fluids Engineering, 2021 - asmedigitalcollection.asme.org
Abstract This Freeman Scholar article reviews the formulation and application of a kinetic
theory for modeling the transport and dispersion of small particles in turbulent gas-flows. The …

Massively parallel numerical simulation using up to 36,000 CPU cores of an industrial-scale polydispersed reactive pressurized fluidized bed with a mesh of one …

H Neau, M Pigou, P Fede, R Ansart, C Baudry… - Powder technology, 2020 - Elsevier
For the last 30 years, experimental and modeling studies have been carried out on fluidized
bed reactors from laboratory up to industrial scales. The application of developed models for …

New insights from comparing statistical theories for inertial particles in turbulence: I. Spatial distribution of particles

AD Bragg, LR Collins - New Journal of Physics, 2014 - iopscience.iop.org
In this paper, we contrast two theoretical models for the spatial clustering of inertial particles
in isotropic turbulence, one by Chun et al (2005 J. Fluid Mech. 536 219) and the other by …

Small-scale dynamics of settling, bidisperse particles in turbulence

R Dhariwal, AD Bragg - Journal of Fluid Mechanics, 2018 - cambridge.org
Mixing and collisions of inertial particles at the small scales of turbulence can be
investigated by considering how pairs of particles move relative to each other. In real …

Eulerian multi-fluid models for the simulation of dynamics and coalescence of particles in solid propellant combustion

F Doisneau, F Laurent, A Murrone, J Dupays… - Journal of …, 2013 - Elsevier
The accurate simulation of polydisperse sprays undergoing coalescence in unsteady
gaseous flows is a crucial issue. In solid rocket motors, the internal flow depends strongly on …

Monte-Carlo simulation of colliding particles or coalescing droplets transported by a turbulent flow in the framework of a joint fluid–particle pdf approach

P Fede, O Simonin, P Villedieu - International Journal of Multiphase Flow, 2015 - Elsevier
The aim of the paper is to introduce and validate a Monte-Carlo algorithm for the prediction
of an ensemble of colliding solid particles, or coalescing liquid droplets, suspended in a …

Collision frequency and radial distribution function in particle-laden turbulent channel flow

JGM Kuerten, AW Vreman - International journal of multiphase flow, 2016 - Elsevier
Abstract We performed Eulerian–Lagrangian direct numerical simulation of particle-laden
channel flow at a frictional Reynolds number of 950. A fully parallelized deterministic particle …

Some accuracy related aspects in two‐fluid hydrodynamic sub‐grid modeling of gas–solid riser flows

J Mouallem, SRA Niaki, N Chavez‐Cussy… - AIChE …, 2020 - Wiley Online Library
Sub‐grid closures for filtered two‐fluid models (fTFM) useful in large scale simulations of
riser flows can be derived from highly resolved simulations (HRS) with microscopic two‐fluid …

Eulerian modeling and simulation of polydisperse moderately dense coalescing spray flows with nanometric-to-inertial droplets: application to Solid Rocket Motors

F Doisneau - 2013 - theses.hal.science
In solid rocket motors, the internal flow depends strongly on the alumina droplets, which
have a high mass fraction. The droplet size distribution, which is wide and spreads up with …

Particle transport in a turbulent boundary layer: Non-local closures for particle dispersion tensors accounting for particle-wall interactions

A Bragg, DC Swailes, R Skartlien - Physics of Fluids, 2012 - pubs.aip.org
Continuum equations derived from a probability density function kinetic equation contain
dispersion tensors that describe the interaction between inertial particles and the underlying …