Publication
Turbulent-laminar patterns in plane Poiseuille flow
Publications associées (117)
Kármán vortex shedding in the wake of a 2D hydrofoil: Measurement and numerical simulation
François Avellan, Mohamed Farhat, Philippe Ausoni, Youcef Ait Bouziad
The present study deals with the shedding process of the Kármán vortices at the trailing edge of a 2D hydrofoil at high Reynolds numbers. Investigations are performed in order to evaluate the ability of an unsteady numerical simulation to accurately reprod ...
2006Numerical Simulation and Analysis of Swirling Flow in the Draft Tube Cone of a Francis Turbine
The paper presents numerical investigations of decelerated swirling flows specific to hydraulic turbines draft tube cone, within the framework of axisymmetric flow models. First, we investigate the behaviour of a Burgers vortex in a diffuser as the swirl i ...
International Association For Hydraulic Research2006Direct numerical simulation in a lid-driven cavity at high Reynolds number by a Chebyshev spectral method
Direct numerical simulation of the flow in a lid-driven cubicalcavity has been carried out at high Reynolds numbers (based on the maximum velocity on the lid), between 12'000 and 22'000. An efficient Chebyshev spectral method has been implemented for the s ...
2006Direct Numerical Simulation in a Lid-Driven Cubical Cavity at High Reynolds Number by a Chebyshev Spectral Method
Direct numerical simulation of the flow in a lid-driven cubicalcavity has been carried out at high Reynolds numbers (based on the maximum velocity on the lid), between 12'000 and 22'000. An efficient Chebyshev spectral method has been implemented for the s ...
Springer, Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com2006Cavitation in Kármán Vortices and Flow Induced Vibrations
François Avellan, Mohamed Farhat, Philippe Ausoni
The shedding process of the Kármán vortices at the trailing edge of a 2D hydrofoil at high Reynolds numbers is investigated. The focus is put on the effect of the cavitation on the vortex street morphology. A direct insight is also provided on the role of ...
2006A field study of turbulent flows in shallow gravel-bed rivers
Mário Jorge Rodrigues Pereira Da Franca
The study of turbulent flows has always been a challenge for scientists. Turbulent flows are common in nature and have an important role in several geophysical processes related to a variety of phenomena such as river morphology, landscape modeling, atmosp ...
EPFL2005Mathematical models and numerical simulations for the America's Cup
Alfio Quarteroni, Nicola Parolini
This paper presents a review of the mathematical models which can be adopted to describe the different physical phenomena characterizing the flow around a sailing yacht. The complete model accounting for laminar-turbulent transition regime, free-surface dy ...
2005Cavitation effects on fluid-structure interaction in the case of a 2D hydrofoil
In the present study, we have carried out an experimental investigation on the fluid-structure interaction caused by Karman vortices in the wake of a truncated 2D hydrofoil. The instrumentation involves a high frequency accelerometer and high speed visuali ...
2005Flow and turbulence in sharp open-channel bends
The sustainable development of rivers requires a knowledge on the three-dimensional mean flow field and the turbulence in complex morphologies. In a future, the computational capacity will be sufficient to simulate numerically the fine details of the flow. ...
EPFL2003Modeling and Analysis of Helicoidal Flow in a Conical Extruder
The present paper discusses the uniqueflow behavior in a new type of extruder. The extruder design is based on a hollow conical assembly of static (stators) and rotating (rotor) parts. Extrusion is achieved from each side of the rotor to provide a two-laye ...
2003