Spatial evolution of multi-scale droplet clusters in an evaporating spray

N Pandurangan, S Sahu - Physics of Fluids, 2022 - pubs.aip.org
Evaporative sprays are encountered in a wide range of engineering applications. Since
clustering of droplets in sprays leads to strong inhomogeneity in the spatial distribution of …

Evaporating droplets in shear turbulence

P Weiss, V Giddey, DW Meyer, P Jenny - Physics of Fluids, 2020 - pubs.aip.org
This paper investigates droplets that evaporate and cluster in shear turbulence with direct
numerical simulations. The flows are statistically stationary and homogeneous, which …

Understanding of turbulence modulation and particle response in a particle-laden jet from direct numerical simulations

H Zhou, ER Hawkes, TCW Lau, R Chin… - Journal of Fluid …, 2022 - cambridge.org
Point-particle direct numerical simulations have been employed to quantify the turbulence
modulation and particle responses in a turbulent particle-laden jet in the two-way coupled …

Role of density ratio on particle dispersion in a turbulent jet

A Capone, G Moscato, G Romano - Physics of Fluids, 2023 - pubs.aip.org
The behavior of dispersed particles in a turbulent round jet is experimentally investigated.
The role of particle-to-fluid density ratio ρ p/ρ f is analyzed by inspecting particle velocity …

New understanding of the regimes and controlling mechanisms in a falling curtain of particles

X Bi, TCW Lau, Z Sun, GJ Nathan - Journal of Fluid Mechanics, 2024 - cambridge.org
A stream of free-falling particles from a rectangular hopper, hereafter called a 'curtain', was
characterised systematically using a well-resolved, non-intrusive optical shadowgraphic …

Characterization of droplet clusters in a turbulent multiphase gas cloud using a model cough simulator

AK Vishwakarma, S Sahu - Physics of Fluids, 2024 - pubs.aip.org
This study aims to investigate the transport of droplets ejected from an artificial cough
simulator, which releases a turbulent puff of droplets into the surrounding air, closely …

On droplets that cluster and evaporate in reactive turbulence

P Weiss, SR Bhopalam, DW Meyer, P Jenny - Physics of Fluids, 2021 - pubs.aip.org
This paper examines droplets that cluster and evaporate in reactive turbulence with direct
numerical simulations. The flows are statistically homogeneous and isotropic with mass …

A numerical study of the effects of the velocity ratio on coflow jet characteristics

X Zhang, RC Chin - Journal of Fluids Engineering, 2020 - asmedigitalcollection.asme.org
In this study, large eddy simulations (LES) of turbulent coflow jets are performed and
designed to investigate the effects of the jet-to-coflow velocity ratio, Vr, on jet characteristics …

[HTML][HTML] Experimental study of a dense stream of particles impacting on an inclined surface

S Han, Z Sun, ZF Tian, A Chinnici, T Lau, M Troiano… - Powder Technology, 2024 - Elsevier
We present measurements of the impact process of gravity-driven flows of particles against
inclined surfaces for a range of particle loadings in the four-way coupled regime. These …

Simultaneous imaging of two-phase velocities in particle-laden flows by two-color optical phase discrimination

X Bi, Z Sun, T Lau, Z Alwahabi, G Nathan - Optics Letters, 2021 - opg.optica.org
In this Letter, we present a particle image/tracking velocimetry (PIV/PTV) technique for
simultaneous velocity measurement of both fluid and particle phases, adopting newly …