Anisotropic particles in turbulence

GA Voth, A Soldati - Annual Review of Fluid Mechanics, 2017 - annualreviews.org
Anisotropic particles are common in many industrial and natural turbulent flows. When these
particles are small and neutrally buoyant, they follow Lagrangian trajectories while …

Point-particle DNS and LES of particle-laden turbulent flow-a state-of-the-art review

JG M. Kuerten - Flow, turbulence and combustion, 2016 - Springer
Particle-laden or droplet-laden turbulent flows occur in many industrial applications and in
natural phenomena. Knowledge about the properties of these flows can help to improve the …

Large-eddy simulation of turbulent dispersed flows: a review of modelling approaches

C Marchioli - Acta Mechanica, 2017 - Springer
In large-eddy simulation (LES) of turbulent dispersed flows, modelling and numerical
inaccuracies are incurred because LES provides only an approximation of the filtered …

Turbophoresis of small inertial particles: theoretical considerations and application to wall-modelled large-eddy simulations

PL Johnson, M Bassenne, P Moin - Journal of Fluid Mechanics, 2020 - cambridge.org
In wall-bounded turbulent flows, the wall-normal gradient in turbulence intensity causes
inertial particles to move preferentially toward the wall, leading to elevated concentration …

On the relative rotational motion between rigid fibers and fluid in turbulent channel flow

C Marchioli, L Zhao, HI Andersson - Physics of Fluids, 2016 - pubs.aip.org
In this study, the rotation of small rigid fibers relative to the surrounding fluid in wall-bounded
turbulence is examined by means of direct numerical simulations coupled with Lagrangian …

Slip velocity of rigid fibers in turbulent channel flow

L Zhao, C Marchioli, HI Andersson - Physics of Fluids, 2014 - pubs.aip.org
In this study, the slip velocity between rigid fibers and a viscous carrier fluid is investigated
for the reference case of turbulent channel flow. The statistical moments of the slip velocity …

Lagrangian filtered density function for LES-based stochastic modelling of turbulent particle-laden flows

A Innocenti, C Marchioli, S Chibbaro - Physics of Fluids, 2016 - pubs.aip.org
The Eulerian-Lagrangian approach based on Large-Eddy Simulation (LES) is one of the
most promising and viable numerical tools to study particle-laden turbulent flows, when the …

Numerical modeling and simulation of particulate fouling of structured heat transfer surfaces using a multiphase Euler-Lagrange approach

R Kasper, J Turnow, N Kornev - International Journal of Heat and Mass …, 2017 - Elsevier
A CFD-based multiphase method for the numerical modeling and simulation of particulate
fouling of structured heat transfer surfaces is presented and validated using different …

Stochastic subgrid-scale modeling for particles dispersion and deposition for a filtered DNS channel flow field

F Rousta, B Lessani, G Ahmadi - International Journal of Multiphase Flow, 2024 - Elsevier
The effect of subgrid-scale velocity fluctuations on the deposition and dispersion of solid
particles in a filtered DNS turbulent channel flow at R e τ= 180, and for particles with Stokes …

Influence of a cost–efficient Langevin subgrid-scale model on the dispersed phase of large–eddy simulations of turbulent bubble–laden and particle–laden flows

M Breuer, F Hoppe - International Journal of Multiphase Flow, 2017 - Elsevier
The paper is concerned with the development of a cost-efficient Langevin subgrid-scale
model and the analysis of its influence on the dispersed phase of turbulent bubble–laden …