Data‐Driven Prediction of Turbulent Flow Statistics Past Bridge Piers in Large‐Scale Rivers Using Convolutional Neural Networks

Z Zhang, K Flora, S Kang, AB Limaye… - Water Resources …, 2022 - Wiley Online Library
Prediction of statistical properties of the turbulent flow in large‐scale rivers is essential for
river flow analysis. The large‐eddy simulation (LES) provides a powerful tool for such …

Aerial observations and numerical simulations confirm density‐driven streamwise vortices at a river confluence

J Duguay, PM Biron, J Lacey - Water Resources Research, 2022 - Wiley Online Library
When rivers collide, complex three‐dimensional coherent flow structures are generated
along the confluence's mixing interface. These structures mix streamborne pollutants and …

Effect of inlet turbulent boundary conditions on scour predictions of coupled LES and morphodynamics in a field-scale river: Bankfull flow conditions

A Khosronejad, K Flora, S Kang - Journal of Hydraulic Engineering, 2020 - ascelibrary.org
This paper presents a systematic numerical investigation to study the effects of inlet turbulent
boundary conditions on the coupled hydrodynamics and morphodynamics computations of …

On the morphodynamics of a wide class of large‐scale meandering rivers: insights gained by coupling LES with sediment‐dynamics

A Khosronejad, AB Limaye, Z Zhang… - Journal of Advances …, 2023 - Wiley Online Library
In meandering rivers, interactions between flow, sediment transport, and bed topography
affect diverse processes, including bedform development and channel migration. Predicting …

Numerical study of mechanisms of air-core vortex evolution in an intake flow

D Zi, A Xuan, F Wang, L Shen - International Journal of Heat and Fluid Flow, 2020 - Elsevier
The mechanism of the generation and evolution of the air-core vortex formed between a free
surface and a horizontal flow intake is investigated using large-eddy simulation of two-phase …

On the delineation of the flow separation zone in open-channel confluences

T Jin, PX Ramos, E Mignot, N Riviere… - Advances in Water …, 2023 - Elsevier
In the context of a T-shaped open-channel confluence, where the tributary flow separates at
the downstream junction edge and creates a separation zone in the post-confluence …

On the performance of a highly-scalable Computational Fluid Dynamics code on AMD, ARM and Intel processor-based HPC systems

P Ouro, U Lopez-Novoa, MF Guest - Computer Physics Communications, 2021 - Elsevier
No area of computing is hungrier for performance than High Performance Computing (HPC),
the demands of which continue to be a major driver for processor performance and adoption …

Assessment of Parshall flumes for discharge measurement of open-channel flows: A comparative numerical and field case study

A Khosronejad, W Herb, F Sotiropoulos, S Kang… - Measurement, 2021 - Elsevier
This paper presents a series of numerical and field studies to examine the accuracy of two
field-scale Parshall flumes, which are employed to measure the flow rate of a wastewater …

Three-dimensional numerical investigation on flow behaviors around a diversion dike

Y Gao, H Yang, L Wang, M Zhao - Physics of Fluids, 2022 - pubs.aip.org
Three-dimensional numerical simulations of a flow past a non-submerged diversion dike are
performed for various blockage ratios (1/6≤ β≤ 1/3) and Froude numbers (0.152≤ Fr≤ …

A comparative study of rigid-lid and level-set methods for LES of open-channel flows: Morphodynamics

A Khosronejad, MG Arabi, D Angelidis… - Environmental Fluid …, 2020 - Springer
Computational modeling of open-channel flows is usually carried out using the rigid-lid (RL)
assumption to prescribe the water surface. Such an approach deems more appropriate for …