Publications de Roland Bouffanais

Computational performance of a parallelized three-dimensional high-order spectral element toolbox

Michel Deville, Roland Bouffanais, Jonas Marcel Lätt, Christoph Bosshard

In this paper, a comprehensive performance review of an MPI-based high-order three-dimensional spectral element method C++ toolbox is presented. The focus is put on the performance evaluation of several aspects with a particular emphasis on the parallel ef ...

2011

Transitional cylindrical swirling flow in presence of a flat free surface

Roland Bouffanais, David Lo Jacono

This article is devoted to the study of an incompressible viscous flow of a fluid partly enclosed in a cylindrical container with an open top Surface and driven by the constant rotation of the bottom wall. Such type of flows belongs to a group of recircula ...

2009

Computational Performance of a Parallelized Three-Dimensional High-Order Spectral Element Toolbox

Michel Deville, Nicolas Fietier, Vincent Keller, Roland Bouffanais, Christoph Bosshard, Jonas Marcel Lätt, Sohrab Jairo Kehtari, Christian Clémençon

In this paper, a comprehensive performance review of all MPI-based high-order three-dimensional spectral element method C++ toolbox is presented. The focus is put on the performance evaluation of aspects with a particular emphasis on the parallel efficienc ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2009

Solution of moving-boundary problems by the spectral element method

Michel Deville, Roland Bouffanais, Nicolas Bodard

2008

Grid filter models for large-eddy simulation

Michel Deville, Marc Anthony David Habisreutinger, Roland Bouffanais

2008

A coupled approximate deconvolution and dynamic mixed scale model for large-eddy simulation

Michel Deville, Marc Anthony David Habisreutinger, Emmanuel Leriche, Roland Bouffanais

2007

Simulation of shear-driven flows : transition with a free surface and confined turbulence

Roland Bouffanais

The research work reported in the present dissertation is aimed at the analysis of complex physical phenomena involving instabilities and nonlinearities occurring in fluids through state-of-the-art numerical modeling. Solutions of intricate fluid physics p ...

EPFL2007

Large-eddy simulation of the flow in a lid-driven cubical cavity

Michel Deville, Emmanuel Leriche, Roland Bouffanais

2007

Large-eddy simulation of the lid-driven cubic cavity flow by the spectral element method

Michel Deville, Emmanuel Leriche, Roland Bouffanais, Daniel Weill

This paper presents the large-eddy simulation of the lid-driven cubic cavity flow by the spectral element method (SEM) using the dynamic model. Two spectral filtering techniques suitable for these simulations have been implemented. Numerical results for Re ...

Kluwer Academic Publishers, Springer2006

Mesh update techniques for free-surface flow solvers using spectral element method

Michel Deville, Roland Bouffanais

This paper presents a novel mesh-update technique for unsteady free-surface Newtonian flows using spectral element method and relying on the arbitrary Lagrangian--Eulerian kinematic description for moving the grid. Selected results showing compatibility of ...

Kluwer Academic Publishers, Springer2006