Recherche

Afficher tous les résultats pour

Accueil

Personne

Anton Schleiss

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (470)

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

Giovanni De Cesare, Anton Schleiss, 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

Influence of density of large stems on the blocking probability at spillways

Anton Schleiss, José Pedro Gamito de Saldanha Calado Matos, Michael Pfister, Paloma Furlan

Dam safety is strongly linked to the probability of occurrence of large floods. Floods can transport large wood (LW) into reservoirs and towards water release structures as spillways. Due to blocking and clogging, LW may significantly influence the dischar ...

Utah State University2018

BLOCKING PROBABILITY OF DRIFTWOOD AT OGEE CREST SPILLWAYS WITH PIERS: INFLUENCE OF WOODY DEBRIS CHARACTERISTICS

Anton Schleiss, José Pedro Gamito de Saldanha Calado Matos, Michael Pfister, Paloma Furlan

Spillways are designed to evacuate floods in a safe way. They should safely release water in order to avoid dam overtopping with its related damages. Nevertheless, it may be dangerous to assume that a flood is only carrying “clear” water. Large woody debri ...

2017

Entrainement de bois flottant dans un déversoir a crête standard avec piliers: Influence des caractéristiques de bois flottant en probabilités de blocage

Anton Schleiss, José Pedro Gamito de Saldanha Calado Matos, Michael Pfister, Paloma Furlan

Spillways are safety elements of dams that allow to release floods. They spill water to avoid overtopping with its potential structural damages at the dam and the downstream environment. Nevertheless it may be unsafe to assume that a flood only carries cle ...

Société hydrotechnique de France2017

INFLUENCE OF LATERAL RECTANGULAR EMBAYMENTS ON THE TRANSPORT OF SUSPENDED SEDIMENTS IN A FLUME

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Carmelo Juez Jiménez

Systematic experimental investigations have been performed under uniform flow conditions in a channel whose banks are equipped with large scale rectangular roughness elements. The practical motivation of this project is to see how restoration of banks, suc ...

2017

Analysis of mechanical-hydraulic bedload deposition control measures

Giovanni De Cesare, Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastian Schwindt

During floods, the bedload transport of steep headwaters can exceed the hydraulic transport capacity of milder downstream reaches where settlements are often situated. Therefore, sediment retention barriers are typically installed upstream of such sensible ...

Elsevier2017

Computational hydraulic modelling of fine sediment stirring and evacuation through the power waterways at the Trift reservoir

Anton Schleiss, Pedro Filipe De Almeida Manso, Célestin Leupi, Azin Amini, Sara Venuleo

Taking advantage of the withdrawal of some glaciers, several new dams will eventually be constructed in Switzerland in the coming years as a part of the 2050 energy strategy. The Trift dam, located in Berner Oberlands in Switzerland, is one of these new pr ...

2017

Protection de la fosse de dissipation du barrage de Chancy-Pougny avec prismes en béton

Giovanni De Cesare, Anton Schleiss, Sabine Chamoun, Davide Wüthrich

La fosse de dissipation à l’aval du barrage de Chancy-Pougny qui fait face à une érosion progressive est l’objet de cette étude. Un modèle physique a été construit à l’échelle 1:55 afin de mieux comprendre les sources de cette érosion. Due à l’asymétrie gé ...

Société hydrotechnique de France2017

Fine sediment routing in a cascade of alpine reservoirs: Influence of the inlet angle on settling of fine sediments

Anton Schleiss, Pedro Filipe De Almeida Manso, Sebastián Guillén Ludeña

Reservoir sedimentation is, at present, one of the main concerns in the operational management of dams. The resulting reduction of storage capacity has negative impacts on the hydropower production, flood protection, and availability of water for irrigatio ...

2017

Reestablishment of a uniform discharge on the Olympic fountain in Lausanne

Giovanni De Cesare, Anton Schleiss, Elena Battisacco

Since its inauguration, in 1993, the horizontal weir crest of the Olympic fountain in Lausanne has suffered from differential settlings leading to a difference in level of more than 30 mm. The settling involves a visible non-uniform discharge distribution ...

Taylor & Francis Ltd2017

Experiments on the effect of inflow and outflow sequences on suspended sediment exchange rates

Giovanni De Cesare, Anton Schleiss, Michael Müller

In laboratory experiments, the influence of inflow and outflow sequences on the behavior of fine sediment was investigated. The experimental set-up consisted of two interconnected rectangular basins, between which water was moved back and forth. Suspended ...

Irtces2017

Assessing the potential increase of seasonal energy storage to mitigate the impact of climate change in Switzerland: Case study of the Grande Dixence dam

Anton Schleiss, Pedro Filipe De Almeida Manso, Blaise Monay, Jérôme François Sylvain Dujardin

The total storage capacity of the reservoirs in Switzerland represents only 42% of their annual production of electricity, but secures approximately 100% of hydropower’s contribution to the winter electricity supply. In order to avoid spilling, the storage ...

2017

Effects of Lateral and Vertical Constrictions on Flow in Rough Steep Channels with Bedload

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastian Schwindt

Two-phase flows occurring at flow constrictions such as bridges or open sediment check dams are complex, especially for steep rivers with bedload transport. Dangerous bedload deposition and backwater effects may occur in steep mountain rivers at bridges. I ...

Asce-Amer Soc Civil Engineers2017

Effect of an abrupt slope change on air entrainment and flow depths at stepped spillways

Anton Schleiss, José Pedro Gamito de Saldanha Calado Matos, Michael Pfister, Mohammad Javad Ostad Mirza

Several stepped spillways have been built in recent decades, mostly integrated in the downstream faces of roller compacted concrete dams. Among them, only a few have changing bottom slopes. Comprehensive information on the effect of a slope change on the f ...

Taylor & Francis Ltd2017

Fluid structure interaction in straight pipelines with different anchoring conditions

Anton Schleiss, Pedro Filipe De Almeida Manso, David Ferràs Segura

This investigation aims at assessing the fluid-structure interaction (FSI) occurring during hydraulic transients in straight pipeline systems fixed to anchor blocks. A two mode 4-equation model is implemented incorporating the main interacting mechanisms: ...

Elsevier2017

Hydromorphodynamic effects of the width ratio and local tributary widening on discordant confluences

António Heleno Cardoso, Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastián Guillén Ludeña

River training works performed in the last couple of centuries constrained the natural dynamics of channel networks in locations that include the confluences between tributaries and main channels. As a result, the dynamics of these confluences are currentl ...

Gfg2017

INVESTIGATION OF TURBIDITY CURRENT VENTING FOR TWO DIFFERENT RESERVOIR BED SLOPES

Giovanni De Cesare, Anton Schleiss, Sabine Chamoun

Reservoirs represent an important source of energy that should be preserved and sustained. However, the lifetime of reservoirs is being reduced due to natural processes such as sedimentation. To face this problem, different sediment mitigation techniques a ...

2017

Tapping hidden hydropower potential in Swiss Alpine catchments in the context of the planned nuclear power phase out

Bettina Schaefli, Anton Schleiss, Pedro Filipe De Almeida Manso, Ana Clara Pereira Barbosa Santos

In its Energy Strategy 2050, Switzerland is revising its energy perspectives with a strong focus on renewable sources of energy and in particular hydropower. In this context, the Swiss Government funded a number of competence centers for energy research (S ...

2017

Hybrid modelling approach to study scour potential of Chancy-Pougny dam stilling basin

Giovanni De Cesare, Erik Bollaert, Anton Schleiss, Sabine Chamoun, Davide Wüthrich

Chancy-Pougny is a run-of-river dam on the Swiss-French border constructed in the early 1920s. Since its inauguration, the operation of the four spillway gates was responsible for a progressive erosion of the stilling basin. Thus, a hybrid modelling was pe ...

2017

Gravel bar inundation frequency: an important parameter for understanding riparian corridor dynamics

Anton Schleiss, Walter Gostner

Riparian zones are some of the most valuable and at the same time endangered ecosystems in the world. Their progressive degradation caused by anthropogenic pressure calls for the adoption of effective, resilient restoration strategies. However, a full unde ...

Springer Verlag2017

Page 7 sur 24