On the transition between turbulence regimes in particle-laden channel flows

J Capecelatro, O Desjardins, RO Fox - Journal of Fluid Mechanics, 2018 - cambridge.org
Turbulent wall-bounded flows exhibit a wide range of regimes with significant interaction
between scales. The fluid dynamics associated with single-phase channel flows is …

Drag reduction in turbulent wall-bounded flows of realistic polymer solutions

F Serafini, F Battista, P Gualtieri, CM Casciola - Physical Review Letters, 2022 - APS
Suspensions of DNA macromolecules (0.8 wppm, 60 kbp), modeled as finitely extensible
nonlinear elastic dumbbells coupled to the Newtonian fluid, show drag reduction up to 27 …

Dispersed fibers change the classical energy budget of turbulence via nonlocal transfer

S Olivieri, L Brandt, ME Rosti, A Mazzino - Physical Review Letters, 2020 - APS
The backreaction of dispersed rigid fibers to turbulence is analyzed by means of a state-of-
the-art fully coupled immersed boundary method. The following universal scenario is …

Exact regularised point particle (ERPP) method for particle-laden wall-bounded flows in the two-way coupling regime

F Battista, JP Mollicone, P Gualtieri… - Journal of fluid …, 2019 - cambridge.org
The exact regularised point particle (ERPP) method is extended to treat the inter-phase
momentum coupling between particles and fluid in the presence of walls by accounting for …

The effect of wall-normal gravity on particle-laden near-wall turbulence

J Lee, C Lee - Journal of Fluid Mechanics, 2019 - cambridge.org
We performed two-way coupled direct numerical simulations of turbulent channel flow with
Lagrangian tracking of small, heavy spheres at a dimensionless gravitational acceleration of …

Accelerated decay of a Lamb–Oseen vortex tube laden with inertial particles in Eulerian–Lagrangian simulations

S Shuai, MH Kasbaoui - journal of fluid mechanics, 2022 - cambridge.org
We investigate the effect of inertial particles on the stability and decay of a prototypical vortex
tube, represented by a two-dimensional Lamb–Oseen vortex. In the absence of particles, the …

[HTML][HTML] A new self-consistent approach of quantum turbulence in superfluid helium

L Galantucci, AW Baggaley, CF Barenghi… - The European Physical …, 2020 - Springer
We present the Fully cOUpled loCAl model of sUperfLuid Turbulence (FOUCAULT) that
describes the dynamics of finite temperature superfluids. The superfluid component is …

Full-scale CFD investigation of gas-particle flow, interactions and combustion in tangentially fired pulverized coal furnace

Investigations suggest the need for better understanding of reactive gas-particle turbulent
flow phenomena in full-scale energy systems. Numerical study was done in 350 MW e utility …

Drag increase and turbulence augmentation in two-way coupled particle-laden wall-bounded flows

F Battista, P Gualtieri, JP Mollicone, F Salvadore… - Physics of …, 2023 - pubs.aip.org
The exact regularized point particle method is used to characterize the turbulence
modulation in two-way momentum-coupled direct numerical simulations of a turbulent pipe …

Disruption of turbulence due to particle loading in a dilute gas–particle suspension

P Muramulla, A Tyagi, PS Goswami… - Journal of Fluid …, 2020 - cambridge.org
The modification of fluid turbulence due to suspended particles is analysed using direct
numerical simulations for the fluid turbulence and discrete particle simulations where the …