Lock-release gravity currents propagating over roughness elements

MR Maggi, C Adduce, ME Negretti - Environmental Fluid Mechanics, 2022 - Springer
The influence of bottom roughness on the development of lock-release gravity currents is
investigated through laboratory experiments using Particle Image Velocimetry. The bottom …

Turbulence characteristics and mixing properties of gravity currents over complex topography

MR Maggi, ME Negretti, EJ Hopfinger, C Adduce - Physics of Fluids, 2023 - pubs.aip.org
Understanding gravity currents developing on complex topography, which involve
turbulence and mixing processes on a wide range of spatial and temporal scales, is of …

Gravity currents interacting with slopes and overhangs

MR Maggi, C Adduce, GF Lane-Serff - Advances in Water Resources, 2023 - Elsevier
When a gravity current interacts with a barrier the flow is reflected back in the form of a
moving hydraulic jump or bore. This latter phenomenon has important implications for …

Gravity currents interacting with a bottom triangular obstacle and implications on entrainment

MC De Falco, C Adduce, MR Maggi - Advances in Water Resources, 2021 - Elsevier
Laboratory experiments investigating the interaction of a lock-exchange dense gravity
current and a submerged obstacle with a triangular section have been conducted to …

Experimental study of uni-and bi-directional exchange flows in a large-scale rotating trapezoidal channel

MC De Falco, C Adduce, A Cuthbertson, ME Negretti… - Physics of …, 2021 - pubs.aip.org
A large-scale experimental study has been conducted at the Coriolis Rotating Platform to
investigate the dynamics of uni-and bi-directional exchange flows along a channel with a …

Non-intrusive density measurements in gravity currents interacting with an obstacle

C Adduce, MR Maggi, MC De Falco - Acta Geophysica, 2022 - Springer
Gravity currents are flows produced by a density difference between two fluids. Non-intrusive
density measurements, based on image analysis, are employed to measure the …

High-fidelity simulations of gravity currents using a high-order finite-difference spectral vanishing viscosity approach

RAS Frantz, G Deskos, S Laizet, JH Silvestrini - Computers & Fluids, 2021 - Elsevier
This numerical work investigates the potential of a high-order finite-difference spectral
vanishing viscosity approach to simulate gravity currents at high Reynolds numbers. The …

Propagation, mixing, and turbulence characteristics of saline and turbidity currents over rough and permeable/impermeable beds

Z He, D Han, YT Lin, R Zhu, Y Yuan, P Jiao - Physics of Fluids, 2022 - pubs.aip.org
A series of constant-flux saline and turbidity current experiments were carried out, focusing
on the coupling impact of bed roughness and permeability on current propagation, mixing …

Effects of emergent and submerged rigid vegetation configurations on gravity current dynamics

D Han, J Xiong, X Xie, Y Lin - Environmental Fluid Mechanics, 2021 - Springer
The propagation and hydrodynamic processes of lock-exchange gravity current through
vegetation regions were investigated experimentally. Experimental results show that the …

Intruding gravity currents and re-circulation in a rotating frame: Laboratory experiments

ME Negretti, FL Tucciarone, A Wirth - Physics of Fluids, 2021 - pubs.aip.org
We present experimental results of rotating downslope gravity currents performed at the
Coriolis Platform in Grenoble, France. A novel experimental design to produce the …