Large eddy simulation of turbidity currents in a narrow channel with different obstacle configurations

D Goodarzi, K Sookhak Lari, E Khavasi, S Abolfathi - Scientific Reports, 2020 - nature.com
Turbidity currents are frequently observed in natural and man-made environments, with the
potential of adversely impacting the performance and functionality of hydraulic structures …

Buoyant fluid injections at high viscosity contrasts in an inclined closed-end pipe

S Akbari, SM Taghavi - Physics of Fluids, 2023 - pubs.aip.org
This paper studies the buoyant miscible injection of a high-viscosity fluid in a pipe filled with
a low-viscosity fluid. The injection is carried out via an eccentric inner pipe inside an inclined …

Dynamics of gravity currents flowing up a slope and implications for entrainment

MC De Falco, L Ottolenghi, C Adduce - Journal of Hydraulic …, 2020 - ascelibrary.org
The dynamics of lock-release gravity currents flowing up a sloping bottom are investigated
by laboratory experiments. Both full-depth and partial-depth gravity currents are analyzed …

Physics-informed neural networks for gravity currents reconstruction from limited data

M Delcey, Y Cheny, S Kiesgen de Richter - Physics of Fluids, 2023 - pubs.aip.org
The present work investigates the use of physics-informed neural networks (PINNs) for the
three-dimensional (3D) reconstruction of unsteady gravity currents from limited data. In the …

Statistical characterisation of turbulence for an unsteady gravity current

J Pelmard, S Norris, H Friedrich - Journal of Fluid Mechanics, 2020 - cambridge.org
The present study aims to provide a statistical analysis of turbulence in the mixing layer of a
lock-exchange gravity current propagating over a 2% slope based on large eddy simulation …

Experiments on gravity currents propagating on unbounded uniform slopes

A Dai, YL Huang - Environmental Fluid Mechanics, 2020 - Springer
Gravity currents propagating on 12^ ∘ 12∘, 9^ ∘ 9∘, 6^ ∘ 6∘, 3^ ∘ 3∘ unbounded uniform
slopes and on an unbounded horizontal boundary are reported. Results show that there are …

Prediction of particles deposition in a dilute quasi-steady gravity current by Lagrangian markers: effect of shear-induced lift force

A Koohandaz, E Khavasi, A Eyvazian, H Yousefi - Scientific Reports, 2020 - nature.com
A gravity current in a channel at the presence of a triangular obstacle was investigated using
LES simulation and the Eulerian approach. The Saffman–Mei equation was also applied to …

Numerical simulations of the interactions between counterflowing density currents

SU Okon, Q Li, F Shen, N Wang… - Engineering Applications of …, 2024 - Taylor & Francis
The collision and interactions between counterflowing density currents frequently occur in
nature and engineering practices along the coastal regions. However, the mechanisms and …

Experimental study of air curtains blocking saltwater intrusion under estuary dynamic conditions

C Lu, S Gao, Y Kang, Y Yang, B Liu - Ocean Engineering, 2024 - Elsevier
The saltwater intrusion seriously threatens the water supply security of estuaries, while the
existing salty blocking measures (eg, gates and dams) are rude and the dynamic …

Modeling nonconfined density currents using 3D hydrodynamic models

B Pérez-Díaz, S Castanedo, P Palomar… - Journal of Hydraulic …, 2019 - ascelibrary.org
Density currents generated by marine brine discharges, eg, from desalination plants, can
have a negative impact on marine ecosystems. It is therefore important to accurately predict …