Concept
Érosion
Publications associées (286)
Quantifying the effects of rainfall temporal variability on landscape evolution processes
Rainfall characteristics such as intensity, duration, and frequency are key determinants of the hydro-geomorphological response of a catchment. The presence of non-linear and threshold effects makes the relationship between rainfall variability and geomorp ...
2024Mechanistic 2D flow-erosion modelling of vegetated river banks
Giovanni De Cesare, Paolo Perona, Massimiliano Schwarz
We present a simple, vertically-explicit 2D model of river bank erosion that also takes the effect of sediment stabilization by plant roots into account. The model is solved in quasi-analytical form for an exemplary non-stationary hydrograph temporal signa ...
2023Plasma sputtering of biased electrodes in an oblique magnetic field
Stefano Alberti, Ivo Furno, Alessandro Geraldini
The surface erosion of biased electrodes immersed in a radio frequency (RF) plasma was investigated in oblique magnetic fields ranging from 0.1 T to 3.5 T. The plasma potential and density in the vicinity of the biased electrode have been measured using an ...
IOP Publishing Ltd2023Ultrasonic sediment flux profiling with ACVP Technology: application to sediment-laden Boundary Layer flows
Giovanni De Cesare, David Hurther
Sediment transport in geophysical boundary layer flows has relevance to a broad spectrum of sciences ranging from the physical and chemical, to the biological, ecological and geological. Advances in sediment transport modelling and prediction strongly suff ...
2023Spectroscopic characterisation of TCV divertor towards a detached regime
The challenge of power exhaust of the high heat and particle fluxes foreseen for ITER and the forthcoming nuclear fusion reactors can be mitigated by operating in a detached divertor regime.This regime has been the object of three decades of studies, as it ...
EPFL2023The role of plasma-atom and molecule interactions on power & particle balance during detachment on the MAST Upgrade Super-X divertor
Christian Gabriel Theiler, Kevin Henricus Annemarie Verhaegh
This paper shows first quantitative analysis of the detachment processes in the MAST Upgrade Super-X divertor (SXD). We identify an unprecedented impact of plasma-molecular interactions involving molecular ions (likely D2+ ), resulting in strong ion sinks ...
Bristol2023