Publication
Second-order sensitivity of parallel shear flows and optimal spanwise-periodic flow modifications
Related publications (32)
Influence of the shear stress on fine sediment exchanges with the substrate using UVP measurements
Giovanni De Cesare, Romain Maxime Dubuis
The dynamic of fine sediment in rivers is closely related to the interactions between fine particles, the riverbed and the flow conditions. The accumulation of fine sediment in the riverbed reduces vertical water exchanges and can have detrimental effects ...
2023Solids that are also liquids: elastic tensors of superionic materials
Nicola Marzari, Tommaso Chiarotti, Giuliana Materzanini
Superionics are fascinating materials displaying both solid- and liquid-like characteristics: as solids, they respond elastically to shear stress; as liquids, they display fast-ion diffusion at normal conditions. In addition to such scientific interest, su ...
NATURE PORTFOLIO2023Shear strength and shear stiffness analysis of compacted Wyoming-type bentonite
Wyoming-type bentonite is one of the materials to be used as part of the Engineered Barrier System (EBS) in deep geological disposal facilities for the safe disposal of spent nuclear fuel.In the KBS-3 type repository, the canisters containing the spent fue ...
ELSEVIER2023Effects of the parallel flow shear on the ITG-driven turbulent transport in tokamak plasmas
Yann Camenen, Javier García Hernández, Samuele Mazzi
The impact of the parallel flow shear on the tokamak plasma stability and turbulent transport driven by the ion temperature gradient (ITG) modes is analyzed by means of local gyrokinetic numerical analyses. It is shown that the parallel flow shear increase ...
IOP Publishing Ltd2022Fault roughness’s influence on experimental fault mechanical behavior
Brice Tanguy Alphonse Lecampion, Marie Estelle Solange Violay, Barnaby Padraig Fryer, Seyyedmaalek Momeni, François Xavier Thibault Passelègue, Carolina Giorgetti
Fault slip behavior and earthquake nucleation are often framed within the context of velocity-dependent friction, ranging from velocity-strengthening to velocity-weakening behavior. Previous studies have shown that fault roughness controls the fault slip b ...
2022Second-order adjoint-based sensitivity for hydrodynamic stability and control
Adjoint-based sensitivity analysis is routinely used today to assess efficiently the effect of open-loop control on the linear stability properties of unstable flows. Sensitivity maps identify regions where small-amplitude control is the most effective, i. ...
CAMBRIDGE UNIV PRESS2021Particle-size segregation and rheology coupling in dense granular flows.
Tomás Alfredo Trewhela Palacios
Dense granular flows -debris or pyroclastic flows, avalanches, granular flows in heaps, silos or rotating drums-are ubiquitous to many natural and industrial processes. Their grain composition is often polydisperse, with particles differing in shape, size ...
EPFL2021Frictional behaviour of carbonate bearing faults at brittle-ductile transition
Marie Estelle Solange Violay, Mathias Alexandre David Lebihain, Carolina Giorgetti, Francesco Figura
One of the most alarming recent findings in geo-science is the dramatic rise in the rate of humaninduced earthquakes in the past decade. This is due to the fluid injection or extraction in deep reservoirs for hydrocarbon production, wastewater and CO2 stor ...
2021Hydraulic Transport Through Calcite Bearing Faults With Customized Roughness: Effects of Normal and Shear Loading
Marie Estelle Solange Violay, Mateo Alejandro Acosta
Understanding fluid flow in rough fractures is of high importance to large scale geologic processes and to most anthropogenic geo‐energy activities. Here we conducted fluid transport experiments on Carrara marble fractures with a novel customized surface t ...
2020Effect of normal and shear loading on the hydraulic transport properties of calcite bearing faults with customized roughness
Marie Estelle Solange Violay, Mateo Alejandro Acosta
Understanding fluid flow in rough fractures is of high importance to large scale geologic processes and to most anthropogenic geo-energy activities. Here, we conducted fluid transport experiments on Carrara marble fractures with a novel customized surface ...
2020