Publications associées à Machine hydraulique

Influence of air entrainment on rock scour development and block stability in plunge pools

Rock scour occurring near dam foundations due to high-velocity jets of spillways impinging into the plunge pool is a major concern regarding dam safety. Scour in fractured rock resulting from high-velocity jet impact is a complex phenomenon, which involves ...

EPFL - LCH2014

Modeling and control of large salient-pole synchronous hydro generators and stability issues in isolated production mode

Christophe Nicolet, Basile Kawkabani, Alexander Schwery

This paper presents the modeling, simulation and analysis of the dynamic behavior of a hydroelectric power plant of 2x343 MVA including hydraulic system, electrical installations, rotating inertias and control systems. First, the modeling of the electrical ...

Ieee2013

Experiments and numerical modeling of baffle configuration effects on the performance of sedimentation tanks

David Andrew Barry, Roham Bakhtyar, Amir Mehdi Razmi

The hydraulic efficiency of sedimentation basins is reduced by short-circuiting, circulation zones and bottom particle-laden jets. Baffles are used to improve sediment tank performance. In this study, laboratory experiments were used to examine the hydrody ...

National Research Council Canada2013

Stepped Spillways: Technical Advance from 1900

Michael Pfister

Stepped spillways are currently a standard design in hydraulic engineering. Whereas these spillways were hardly employed until the advent to the Roller-Compacted Concrete (RCC) Technology in the 1980s, they were of particular interest from the 1990s for sp ...

Tsinghua University Press (wqbook)2013

A case study on spatial and temporal hydraulic variability in an alpine gravel-bed stream based on the hydromorphological index of diversity

Anton Schleiss, Walter Gostner, Piotr Parasiewicz

Physical heterogeneity is a major topic in river sciences because it is known to be a key factor for ecological integrity. In this paper, we investigated the hydraulic enviroment in an alpine gravel-bed stream with an unaltered hydrological regime. The stu ...

John Wiley and Sons2013

Overview of Piano Key weir prototypes and scientific model investigations

Anton Schleiss, Michael Pfister, Marcelo Leite Ribeiro

The interest in Piano Key weirs (PKW) was increasing over the past years, both in terms of application and hydraulic research. Several systematic model test series were per-formed and published so far, originating from different hydraulic laboratories arou ...

Erpicum et al., CRC Press, Boca Raton2013

Estimation of A-type Piano Key weir rating curve

Anton Schleiss, Michael Pfister

The Piano Key weir (PKW) is a hydraulically attractive alternative to linear overflow weirs, increasing the unit discharge for similar heads and spillway widths. This advantage allows operating dam reservoirs on an increased level and provides thereby an e ...

Eds Erpicum et al., CRC Press, Boca Raton2013

Hydraulic design of the diaphragm’s orifice at the entrance of the surge shaft of FMHL pumped-storage power plant

Giovanni De Cesare, Christophe Nicolet, Fadi Hachem, Rafael Xavier Meriade Duarte

The surge tank located at the upstream head of penstocks and shafts of hydropower plants is an effective measure to protect the headrace tunnels against high pressure fluctuations. It reflects the transient pressure waves that are generated by the variatio ...

TPU2013

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Machine hydraulique

Influence of air entrainment on rock scour development and block stability in plunge pools

Modeling and control of large salient-pole synchronous hydro generators and stability issues in isolated production mode

Experiments and numerical modeling of baffle configuration effects on the performance of sedimentation tanks

Stepped Spillways: Technical Advance from 1900

The effect of pressure gradient on the collapse of cavitation bubbles in normal and reduced gravity

A case study on spatial and temporal hydraulic variability in an alpine gravel-bed stream based on the hydromorphological index of diversity

Overview of Piano Key weir prototypes and scientific model investigations

Innertkirchen compensation basin outlets – Flap gate combined with small stilling basin

Estimation of A-type Piano Key weir rating curve

Hydraulic design of the diaphragm’s orifice at the entrance of the surge shaft of FMHL pumped-storage power plant

Graph Chatbot

Chattez avec Graph Search

Hydraulic design of the diaphragm’s orifice at the entrance of the surge shaft of FMHL pumped-storage power plant

Estimation of A-type Piano Key weir rating curve

Innertkirchen compensation basin outlets – Flap gate combined with small stilling basin

Overview of Piano Key weir prototypes and scientific model investigations

A case study on spatial and temporal hydraulic variability in an alpine gravel-bed stream based on the hydromorphological index of diversity

The effect of pressure gradient on the collapse of cavitation bubbles in normal and reduced gravity

Stepped Spillways: Technical Advance from 1900

Experiments and numerical modeling of baffle configuration effects on the performance of sedimentation tanks

Modeling and control of large salient-pole synchronous hydro generators and stability issues in isolated production mode

Influence of air entrainment on rock scour development and block stability in plunge pools