Direct numerical simulation of particle-laden flow in an open channel at

W Gao, R Samtaney, DH Richter - Journal of Fluid Mechanics, 2023 - cambridge.org
We perform two-way coupled direct numerical simulation of particle-laden flow in an open
channel at a friction Reynolds number (). The spatial structures are investigated with …

Role of the hierarchy of coherent structures in the transport of heavy small particles in turbulent channel flow

Y Motoori, CK Wong, S Goto - Journal of Fluid Mechanics, 2022 - cambridge.org
To investigate the transport of heavy small particles (inertial particles) in high-Reynolds-
number wall turbulence, we conduct direct numerical simulations of inertial particles in …

Modulation of turbulence by saltating particles on erodible bed surface

X Zheng, S Feng, P Wang - Journal of Fluid Mechanics, 2021 - cambridge.org
Large-eddy simulation of a particle-laden flow over an erodible bed is performed to
investigate the effect of heavy, saltating particles on turbulence modulation, using the …

A benchmark for particle-laden turbulent duct flow: A joint computational and experimental study

M Esmaily, L Villafane, AJ Banko, G Iaccarino… - International Journal of …, 2020 - Elsevier
A turbulent duct flow laden with small heavy inertial particles (Re τ≈ 570, St+≈ 50, d p+≈
0.3, St≈ 12, and dp/η≈ 0.17) is studied computationally and experimentally. We examine …

Reconstruction of three-dimensional turbulent flow structures using surface measurements for free-surface flows based on a convolutional neural network

A Xuan, L Shen - Journal of Fluid Mechanics, 2023 - cambridge.org
A model based on a convolutional neural network (CNN) is designed to reconstruct the three-
dimensional turbulent flows beneath a free surface using surface measurements, including …

The effect of gravity on turbulence modulation in particle-laden horizontal open channel flow

P Wang, J Li, X Zheng - Physics of Fluids, 2021 - pubs.aip.org
Two-way coupled direct numerical simulation of turbulence in a horizontal open channel
with Lagrangian tracking of heavy particles is performed to study the joint influence of …

Direct numerical simulation of turbulent mass transfer at the surface of an open channel flow

M Pinelli, H Herlina, JG Wissink… - Journal of Fluid …, 2022 - cambridge.org
We present direct numerical simulation results of turbulent open channel flow at bulk
Reynolds numbers up to 12 000, coupled with (passive) scalar transport at Schmidt numbers …

Effect of channel dimensions and Reynolds numbers on the turbulence modulation for particle-laden turbulent channel flows

N Rohilla, S Arya, PS Goswami - Physics of Fluids, 2023 - pubs.aip.org
The addition of particles to turbulent flows changes the underlying mechanism of turbulence
and leads to turbulence modulation. The important parameters are particle Stokes number …

Multiscale interaction of inertial particles with turbulent motions in open channel flow

G Wang, D Richter - Physical Review Fluids, 2020 - APS
Direct numerical simulations two-way coupled with inertial particles are used to investigate
the particle distribution and two-way coupling mechanisms in turbulent open channel flow. In …

Effects of the Saffman lift force on particle statistics and turbulence modulation in two-phase flow

J Li, P Wang, X Zheng - Physical Review Fluids, 2024 - APS
Point-particle direct numerical simulations of horizontal open-channel turbulence two-way
coupled with inertial particles (St+= 1, 31, 100) are performed to investigate the effects of the …