36 citations · 214 across the 10 of their papers we have counts for
10 papers
Channel confinement mollifies roll wave instabilities
Jake Langham, Cyril Gadal, Jamie P. Webb +2
Under certain conditions, gravity currents spontaneously develop large-amplitude streamwise undulations on their free surfaces ('roll waves'). The effect of channel geometry on thi…
Surface curvature and secondary vortices in steady dense shallow granular flows
C. Gadal, C. G. Johnson, J. M. N. T. Gray
Dense granular flows exhibit both surface deformation and secondary flows due to the presence of normal stress differences. Yet, a complete mathematical modelling of these two feat…
Slumping regime in lock-release turbidity currents
Cyril Gadal, Matthieu Mercier, Marie Rastello +1
Most gravitational currents occur on sloping topographies, often in the presence of particles that can settle during the current propagation. Yet, an exhaustive exploration of asso…
Local Wind Regime Induced by Giant Linear Dunes: Comparison of ERA5-Land Reanalysis with Surface Measurements
Cyril Gadal, Pauline Delorme, Clément Narteau +4
Emergence and growth of sand dunes results from the dynamic interaction between topography, wind flow and sediment transport. While feedbacks between these variables are well studi…
Coexistence of two dune growth mechanisms in a landscape-scale experiment
Ping Lü, Clément Narteau, Zhibao Dong +5
In landscape-scale experiments at the edge of the Gobi desert, we show that various dune types develop simultaneously under natural wind conditions. Using 4 years of high-resolutio…
Direct validation of dune instability theory
Ping Lü, Clément Narteau, Zhibao Dong +6
Modern dune fields are valuable sources of information for the large-scale analysis of terrestrial and planetary environments and atmospheres, but their study relies on understandi…
Spatial and temporal development of incipient dunes
Cyril Gadal, Clément Narteau, Ryan C. Ewing +4
In zones of loose sand, wind-blown sand dunes emerge due the linear instability of a flat sedimentary bed. This instability has been studied in experiments and numerical models but…
Elongation and stability of a linear dune
O. Rozier, C. Narteau, C. Gadal +2
Compared to barchan dunes, the morphodynamics of linear dunes that elongate on a non-erodible bed is barely investigated by means of laboratory experiments or numerical simulations…
Periodicity in fields of elongating dunes
Cyril Gadal, Clément Narteau, Sylvain Courrech du Pont +2
Dune fields are commonly associated with periodic patterns that are among the most recognizable landscapes on Earth and other planetary bodies. However, in zones of limited sedimen…
Incipient bedforms in a bidirectional wind regime
Cyril Gadal, Clément Narteau, Sylvain Courrech du Pont +2
Most terrestrial sand seas form at `horse' latitudes, where the wind direction exhibits seasonal variation. Here, we extend the two-dimensional linear stability analysis of a flat…