Publications associées à Flow measurement

Two-fluid plasma model for radial Langmuir probes as a converging nozzle with sonic choked flow, and sonic passage to supersonic flow

Ivo Furno, Alan Howling, Philippe Frédérique Bruno Guittienne

Using the Lambert function, Guittienne et al. [Phys. Plasmas 25, 093519 (2018)] derived two-fluid solutions for radial Langmuir probes in collisionless and isothermal plasma. In this Brief Communication, we point out the close analogy with classical compre ...

2019

Self-consistent triple decomposition of the turbulent flow over a backward-facing step under finite amplitude harmonic forcing

François Gallaire, Eunok Yim, Philippe Meliga

We investigate the saturation of harmonically forced disturbances in the turbulent flow over a backward-facing step subjected to a finite amplitude forcing. The analysis relies on a triple decomposition of the unsteady flow into mean, coherent and incohere ...

ROYAL SOC2019

Roll-up region of tip vortex: numerical investigation

Mohamed Farhat, Azin Amini, Matthieu Dreyer, Martino Reclari

The appearance of gas-filled vortices at the tip of hydraulic machines blades is usually associated with increase of losses, vibrations, noise and erosion risk. The understanding of the roll-up region, where the boundary layer on the pressure side crosses ...

IOP PUBLISHING LTD2019

Uncertainty Analysis of the Von Karman Constant for the Mean Centerline Velocity in CICLoPE

Peter Monkewitz

Further examination of the pressure measurement uncertainties in determining the pressure gradient along the fully-developed section of CICLoPE, yields a Karman constant based on the centerline velocity of kappa(CL) = 0.43 +/- 0.06. More significantly, we ...

SPRINGER INTERNATIONAL PUBLISHING AG2019

Steady state in experimentally produced turbidity current under a large amount of suspension supply

Giovanni De Cesare, Shun Nomura, Jumpei Hitomi

Turbidity current is generated in an inclined lock-gate flume under a large amount of suspension supply. By opening the gate, turbidity current generates and flows to downstream. The turbidity current maintains its interface structure and progresses with c ...

2019

Spatially Sampled Pressure Profile Measurements in Externally Pressurized Gas Journal Bearings

Jürg Alexander Schiffmann, Eliott Philippe Guenat, Karim Magdi Zakaria Abdelrahman Shalash

Externally pressurized gas journal bearings (EPGJB) are widely adopted to support high speed rotors. This paper presents novel experimental benchmark test data which enables EPGJB model validation. Axial and circumferential pressure profile measurements ar ...

2018

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Anton Schleiss, Giovanni De Cesare, Michael Müller

In pumped-storage reservoirs, turbulent kinetic energy input from plant operation can be considerably high. Flow velocities were measured by Acoustic Doppler Current Profilers near the intake/outlet structure to describe flow patterns induced by pumped-sto ...

2018

Flow measurement for the design optimization of fish pass entries in a run of river hydropower plant

Giovanni De Cesare, Cédric Bron, Pierre Bourqui

The International Commission for the Protection of the Rhine (ICPR) has set the objective of guarantying the upstream migration of the salmons up to Basel, Switzerland, at horizon 2020. One of the last dams to be equipped is the one of Rhinau, in France. T ...

2018

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Flow measurement

Two-fluid plasma model for radial Langmuir probes as a converging nozzle with sonic choked flow, and sonic passage to supersonic flow

Self-consistent triple decomposition of the turbulent flow over a backward-facing step under finite amplitude harmonic forcing

Roll-up region of tip vortex: numerical investigation

Uncertainty Analysis of the Von Karman Constant for the Mean Centerline Velocity in CICLoPE

Steady state in experimentally produced turbidity current under a large amount of suspension supply

Thermohaline Flow in Seawater Intrusion in Shallow Coastal Aquifers

Spatially Sampled Pressure Profile Measurements in Externally Pressurized Gas Journal Bearings

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Dynamics and Optimal Control of Self-Sustained Instabilities in Laminar and Turbulent Swirling Flows: Application to the Part Load Vortex Rope in Francis Turbines

Flow measurement for the design optimization of fish pass entries in a run of river hydropower plant

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Chattez avec Graph Search

Two-fluid plasma model for radial Langmuir probes as a converging nozzle with sonic choked flow, and sonic passage to supersonic flow

Self-consistent triple decomposition of the turbulent flow over a backward-facing step under finite amplitude harmonic forcing

Dynamics and Optimal Control of Self-Sustained Instabilities in Laminar and Turbulent Swirling Flows: Application to the Part Load Vortex Rope in Francis Turbines

Spatially Sampled Pressure Profile Measurements in Externally Pressurized Gas Journal Bearings

Thermohaline Flow in Seawater Intrusion in Shallow Coastal Aquifers

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Flow measurement for the design optimization of fish pass entries in a run of river hydropower plant

Roll-up region of tip vortex: numerical investigation

Uncertainty Analysis of the Von Karman Constant for the Mean Centerline Velocity in CICLoPE

Steady state in experimentally produced turbidity current under a large amount of suspension supply