Publication
Anomalous Dissipation and Lack of Selection in the Obukhov-Corrsin Theory of Scalar Turbulence
Related publications (48)
On Von Karman Modeling For Turbulent Flow Near A Wall
Jacques Rappaz, Jonathan Rochat
Mixing-length models are often used by engineers in order to take into account turbulence phenomena in a flow. This kind of model is obtained by adding a turbulent viscosity to the laminar one in Navier-Stokes equations. When the flow is confined between t ...
2019Turbulent Flows over Rough Permeable Beds in Mountain Rivers: Experimental Insights and Modeling
Gauthier Paul Daniel Marie Rousseau
Steep mountain streams exhibit shallow waters with roughness elements such as stones and pebbles that are comparable in size to flow depth. Owing to the difficulty in measuring fluid velocities at the interface, i.e., from the rough permeable bed to the fr ...
EPFL2019Truncated Levy motion through path integrals and applications to nondiffusive suprathermal ion transport
Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Marcelo Baquero Ruiz, Oulfa Chellaï, Fabian Manke
Fractional Levy motion has been derived from its generalized Langevin equation via path integrals in earlier works and has since proven to be a useful model for nonlocal and non-Markovian processes, especially in the context of nondiffusive transport. Here ...
AMER PHYSICAL SOC2019A semi-Lagrangian splitting method for the numerical simulation of sediment transport with free surface flows
Marco Picasso, Alexandre Caboussat, Gilles Steiner, Arwa Mrad
We present a numerical model for the simulation of 3D poly-dispersed sediment transport in a Newtonian flow with free surfaces. The physical model is based on a mixture model for multiphase flows. The Navier-Stokes equations are coupled with the transport ...
PERGAMON-ELSEVIER SCIENCE LTD2018Dual Dynamically Orthogonal approximation of incompressible Navier Stokes equations with random boundary conditions
Fabio Nobile, Eleonora Musharbash
In this paper we propose a method for the strong imposition of random Dirichlet boundary conditions in the Dynamical Low Rank (DLR) approximation of parabolic PDEs and, in particular, incompressible Navier Stokes equations. We show that the DLR variational ...
Elsevier2018What Waterfalls and Kitchen Sinks have in Common: A Comparison between Vertical and Horizontal Supported Jets
In plunging jets and at hydraulic jumps, large amounts of air bubbles are entrained at the impingement of the liquid jet and receiving body (BIN, 1993; ERVINE, 1998; CHANSON, 2009a). Air is entrapped and advected into a turbulent shear layer with strong in ...
2018Revisiting the quest for a universal log-law and the role of pressure gradient in "canonical" wall-bounded turbulent flows
The trinity of so-called "canonical" wall-bounded turbulent flows, comprising the zero pressure gradient turbulent boundary layer, abbreviated ZPG TBL, turbulent pipe flow, and channel/duct flows has continued to receive intense attention as new and more r ...
Amer Physical Soc2017Ionic correlations and failure of Nernst-Einstein relation in solid-state electrolytes
Nicola Marzari, Aris Marcolongo
A microscopic understanding of fast ionic transport is fundamental to design novel solid-state electrolytes. We address the role of correlations in these systems and study in detail the tracer and charge diffusion coefficients, deriving a novel inequality ...
Amer Physical Soc2017Basal entrainment by Newtonian gravity-driven flows
Christophe Ancey, Nicolas Andreini, Belinda Margaret Bates
Gravity-driven flows can erode the bed along which they descend and increase their mass by a factor of 10 or more. This process is called "basal entrainment." Although documented by field observations and laboratory experiments, it remains poorly understoo ...
Amer Inst Physics2016Basal entrainment by Newtonian gravity-driven flows
Christophe Ancey, Nicolas Andreini, Belinda Margaret Bates
Gravity-driven flows can erode the bed along which they descend and increase their mass by a factor of 10 or more. This process is called basal entrainment. Although documented by field observations and laboratory experiments, it remains poorly understood. ...
2016