[HTML][HTML] Lagrangian wavelet analysis of turbulence modulation in particle–liquid mixing flows

C Savari, M Barigou - Physics of Fluids, 2022 - pubs.aip.org
A new experimental–theoretical framework has been developed to investigate turbulence
and turbulence modulation in a two-phase multicomponent particle–liquid flow in a …

Self-organizing single-line particle trains with differently shaped particles in a channel flow

X Hu, X Li, P Lin, Z Zhu - Physics of Fluids, 2023 - pubs.aip.org
The inertial migration of differently shaped rectangular particles and elliptical particles in a
channel flow and the self-organization of single-line particle trains are studied using the …

Improved modelling of interfacial terms in the second-moment closure for particle-laden flows based on interface-resolved simulation data

Y **a, Z Yu, Z Lin, Y Guo - Journal of Fluid Mechanics, 2022 - cambridge.org
Correlations for the interfacial terms in the fluid dissipation rate equation and Reynolds
stress equations are established for particle-laden flows, based on data from the interfaced …

Drag model from interface-resolved simulations of particle sedimentation in a periodic domain and vertical turbulent channel flows

Y **a, Z Yu, D Pan, Z Lin, Y Guo - Journal of Fluid Mechanics, 2022 - cambridge.org
A drag correlation is established for laminar particle-laden flows, based on data from the
interfaced-resolved direct numerical simulations (IR-DNS) of particle sedimentation in a …

Preferential accumulation of finite-size particles in near-wall streaks

C Peng, LP Wang, S Chen - Journal of Fluid Mechanics, 2024 - cambridge.org
The preference for particles to accumulate at specific regions in the near-wall part is a widely
observed phenomenon in wall-bounded turbulence. Unlike small particles more frequently …

An immersed boundary method‐discrete unified gas kinetic scheme simulation of particle‐laden turbulent channel flow on a nonuniform orthogonal mesh

K Karzhaubayev, LP Wang, C Peng… - … Journal for Numerical …, 2024 - Wiley Online Library
Particle‐resolved simulations of turbulent particle‐laden flows provide a powerful research
tool to explore detailed flow physics at all scales. However, efficient particle‐resolved …

A direct numerical simulation study of flow modulation and turbulent sedimentation in particle-laden downward channel flows

B Yang, C Peng, G Wang, LP Wang - Physics of Fluids, 2021 - pubs.aip.org
Fully resolved direct numerical simulations of turbulent downward channel flow laden with
finite-size spherical particles are performed using the lattice Boltzmann method. Unlike …

Assessment of local isotropy, energetics, and modified eddy-viscosity based modelling for particle-laden turbulent channel flows

N Rohilla, PS Goswami - Journal of Fluid Mechanics, 2023 - cambridge.org
A large number of turbulence models (stochastic and large-eddy simulation (LES) models)
developed to describe the dynamics of particle-laden turbulent flows are based on the …

A particle-resolved direct numerical simulation method for the compressible gas flow and arbitrary shape solid moving with a uniform framework

B Meng, J Zeng, S Li, B Tian, J Liu - Computer Physics Communications, 2024 - Elsevier
Compressible particle-resolved direct numerical simulations (PR-DNS) are widely used in
explosion-driven dispersion of particles simulations, multiphase turbulence modelling, and …

Model of interfacial term in turbulent kinetic energy equation and computation of dissipation rate for particle-laden flows

Y **a, Z Yu, Z Lin, Y Guo - Physics of Fluids, 2022 - pubs.aip.org
In this paper, we demonstrate that the original Troshko–Hassan model with the correction
coefficient being unity should be chosen for an interfacial term in the turbulent kinetic energy …