Concept

Strouhal number

Related publications (124)

Geometrical parameters influence on the Hall effect sensors offset and drift

Maher Kayal, Jean-Michel Sallese, Maria-Alexandra Paun

Several Hall sensor configurations have been integrated in CMOS technology and analyzed in terms of offset at room temperature and offset drift. We looked for the best geometry that would minimize the offset and its drift. The targeted specification was 30 ...

IEEE2011

Experimental investigation into segregating granular flows down chutes

Christophe Ancey, Nicolas Andreini, Gaël Epely Chauvin, Sébastien Wiederseiner, Gaudenz Moser

We experimentally investigated how a binary granular mixture made up of spherical glass beads size ratio of 2 behaved when flowing down a chute. Initially, the mixture was normally graded, with all the small particles on top of the coarse grains. Segregati ...

2011

Quasistatic to inertial transition in granular materials and the role of fluctuations

Johan Alexandre Philippe Gaume

On the basis of discrete element numerical simulations of a Couette cell, we revisit the rheology of granular materials in the quasistatic and inertial regimes, and discuss the origin of the transition between these two regimes. We show that quasistatic zo ...

2011

Investigation on the Three-Dimensional Flow Mechanisms in Annular Axial Compressor Cascades for Aero Engines with Flow Control by Aspiration on the Hub and on the Blades

Elia Colombo

The axial compressor is an essential component of aero-engines and gas turbines. This work investigates how flow control by aspiration applied to the hub and to the blades of axial compressor wheels can improve the static pressure rise by preventing detrim ...

EPFL2011

Do firms know the scope of their R&D network? An empirical investigation of network awareness on French survey data

Stéphane Lhuillery

Although research and development (R&D) networks influence the innovation performance of their members, firms may not be fully aware of the scope of their network. In particular, due to cost reasons, they may not be fully informed of their “indirect ties”, ...

EPFL-CDM Working Papers Series2010

Correcting hot-wire measurements of stream-wise turbulence intensity in boundary layers

Peter Monkewitz

The current experimental activity aimed at resolving the scaling of stream-wise turbulence intensity profiles (uu) over bar (+)(y(+)) with Reynolds number in turbulent flat plate boundary layers has brought the largely unresolved issue of correcting system ...

2010

Experimental Investigation Of The Vortex Shedding In The Wake Of Oblique And Blunt Trailing Edge Hydrofoils Using Piv-Pod

François Avellan, Mohamed Farhat, Philippe Ausoni, Amirreza Zobeiri

This paper presents an experimental investigation of the vortex shedding in the wake of blunt and oblique trailing edge hydrofoils at high Reynolds number, Re=5 10(5) - 2.9 10(6). The velocity field in the wake is surveyed with the help of Particle-Image-V ...

American Soc Mechanical Engineers, Three Park Avenue, New York, Ny 10016-5990 Usa2010

Experimental investigation of the vortex shedding dynamic in the wake of oblique and blunt trailing edge hydrofoils using PIV-POD method

François Avellan, Mohamed Farhat, Philippe Ausoni, Amirreza Zobeiri

This paper presents an experimental investigation of the vortex shedding in the wake of blunt and oblique trailing edge hydrofoils at high Reynolds number, Re=5 10 5 - 2.9 10 6. The velocity field in the wake is surveyed with the help of Particle-Image-Vel ...

American Soc Mechanical Engineers2010

The dam-break problem for viscous fluids in the high-capillary-number limit

Christophe Ancey, Steve Cochard, Nicolas Andreini

Experiments were undertaken to investigate dam-break flows where a finite volume of highly viscous fluid (glucose with viscosity μ ≈ 350 Pa s) maintained behind a lock gate was released into a horizontal or inclined flume. The resulting sequence of flow-de ...

Cambridge University Press2009

Edge states intermediate between laminar and turbulent dynamics in pipe flow

Tobias Schneider

We studied the dynamics near the boundary between laminar and turbulent dynamics in pipe flow. This boundary contains invariant dynamical states that are attracting when the dynamics is confined to the boundary. These states can be found by controlling a s ...

2009

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