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4 papers · 1 filter
Numerical studies towards practical large-eddy simulation
Jérôme Boudet, Joëlle Caro, L. Shao +1
Large-eddy simulation developments and validations are presented for an improved simulation of turbulent internal flows. Numerical methods are proposed according to two competing c…
Modeling the pressure Hessian and viscous Laplacian in Turbulence: comparisons with DNS and implications on velocity gradient dynamics
L. Chevillard, C. Meneveau, L. Biferale +1
Modeling the velocity gradient tensor A along Lagrangian trajectories in turbulent flow requires closures for the pressure Hessian and viscous Laplacian of A. Based on an Eulerian-…
Observation of near-critical reflection of internal waves in a stably stratified fluid
Thierry Dauxois, Anthony Didier, Eric Falcon
An experimental study is reported of the near-critical reflection of internal gravity waves over sloping topography in a stratified fluid. An overturning instability close to the s…
The alpha effect and its saturation in a turbulent swirling flow generated in the VKS experiment
F. Petrelis, M. Bourgoin, L. Marie +6
We report the experimental observation of the alpha-effect. It consists in the generation of a current parallel to a magnetic field B0 applied to a turbulent swirling flow of liqui…