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Anton Schleiss

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Publications associées (470)

Comparison of chute aerator effect on stepped and smooth spillways

Anton Schleiss, Stéphane Christian Olivier Terrier, Michael Pfister

Bottom chute aerators are installed to prevent cavitation damages and they have been studied in detail on smooth spillways. In parallel, stepped spillways became widespread in the past decades. Research has shown that stepped spillways may be endangered ev ...

2015

Hydraulic transients in straight and coil pipe rigs

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

Transient pressure waves in real pipe systems are affected by several phenomena not accounted for in the classic waterhammer theory. Damping mechanisms are differently manifested according to the material, configuration and existing features of pipe system ...

2015

Case study – Delta restoration at a steep river mouth

Giovanni De Cesare, Anton Schleiss, Stéphanie Joëlle André, Stéphane Christian Olivier Terrier

The mouth of the Baye de Clarens torrent in Switzerland is currently constrained by lateral training walls, sequent sills and a bridge with a low hydraulic capacity. Due to a bed load trap upstream, few sediments reach the mouth. To improve flood protectio ...

IAHR2015

Sediment Evacuation from Reservoirs through Intakes by Jet-Induced Flow

Giovanni De Cesare, Jolanda Maria Isabella Jenzer Althaus, Anton Schleiss

Reservoir sedimentation is considered as a sustainability problem. A concept getting down to the root of the cause was developed and tested in laboratory experiments. The idea is to maintain sediment in suspension, i.e., avoiding its settling near the dam ...

American Society of Civil Engineers2015

Experiments of flow separation at the inner bank of open-channel bends

Koen Blanckaert, Anton Schleiss, Joris Heyman

In spite of its hydraulic and morphologic importance, the conditions of occurrence of flow separation at the inner bank of open channel bends are still not known. In a series of 23 experiments in a laboratory open channel bend with flat sand bed, it was in ...

2015

Closure to “Debris-Blocking Sensitivity of Piano Key Weirs under Reservoir-Type Approach Flow” by Michael Pfister, Damiano Capobianco, Blake Tullis, and Anton J. Schleiss

Anton Schleiss, Michael Pfister, Blake Tullis

American Society of Civil Engineers2015

Wave-reducing Stern Flap on Ship Convoys to Protect Riverbanks

Giovanni De Cesare, Anton Schleiss, Robin Amacher, Théodora Cohen Liechti, Michael Pfister

Inland navigable waterways are significant in cargo transport and leisure activities. In parallel, these channels and rivers often suffer from the ship traffic, as the generated waves may damage waterway banks, along with their riparian fauna. As a consequ ...

Amer Soc Naval Eng Inc2015

Period and amplitude of bedload pulses in a macro-rough channel

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Tamara Ghilardi

It is known that bedload fluctuates over time in steep rivers with wide grain size distributions, even under conditions of constant sediment feed and water discharge. Bedload fluctuations, which are a consequence of grain sorting, are periodic and are rela ...

American Geophysical Union2014

Hydraulic–hydrologic model for water resources management of the Zambezi basin

Anton Schleiss, Théodora Cohen Liechti, José Pedro Gamito de Saldanha Calado Matos

The paper focuses on the development of the hydraulic–hydrological model used to simulate water resources management scenarios in the Zambezi River basin. The main challenges of the implementation of the model are the scarcity of continuous reliable discha ...

2014

Sediment transport in steep channels with large roughness elements

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Tamara Ghilardi

Most sediment transport equations overestimate the bedload transport rate by several times when applied to mountain rivers. This is due to the fact that the presence of large relatively immobile boulders, which disrupt the flow, is generally not taken into ...

CRC Press/Balkema2014

Attractiveness of a lateral shelter in a channel as a refuge for juvenile brown trout during hydropeaking

Jean-Marc Ribi, Anton Schleiss, Armin Julius Peter

Peak power production in hydroelectric storage power plants results in frequent and intense flow variations in the rivers downstream of the plants. Fish populations can be negatively impacted when subjected to these so-called hydropeaking phenomena. In res ...

Springer Verlag2014

Steel-lined pressure tunnels and shafts in anisotropic rock

Anton Schleiss, Alexandre Jean Pachoud

Faculty of Engineering of University of Porto2014

The terms of turbulent kinetic energy budget within random arrays of emergent cylinders

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Ana Margarida Da Costa Ricardo

This article is aimed at quantifying and discussing the relative magnitude of key terms of the equation of conservation of turbulent kinetic energy (TKE) in the inter-stem space of a flow within arrays of vertical cylinders simulating plant stems of emerge ...

American Geophysical Union2014

Stress-strain analysis of a coiled copeer pipe for inner pressure loads

Anton Schleiss, David Ferràs Segura

Faculty of Engineering of University of Porto2014

Effect of compressed riprap thickness on the stability of river banks

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Mona Jafarnejad Chaghooshi, Michael Pfister

One of the common measures for river bank protection is the installation of riprap. There are several methods to design riprap appropriately, which are however generally limited to dumped medium size blocks. Nevertheless, an additional resistance against e ...

CRC Press/Balkema2014

A comparison of statistical and deterministic methods for predicting extreme floods in an alpine catchment

Anton Schleiss, Fränz Zeimetz, Ramona Georgeta Receanu

Faculty of Engineering of University of Porto2014

Hydrological modelling of the Zambezi River Basin taking into account floodplain behaviour by a modified reservoir approach

Anton Schleiss, Théodora Cohen Liechti, José Pedro Gamito de Saldanha Calado Matos, David Ferràs Segura

Floodplains are regions of great interest for environmental assessment as they constitute important ecological reserves and contribute efficiently to natural flood attenuation. However, the implementation of a model describing the basic hydrological behavi ...

2014

Reactivation of Klingnau reservoir sidearm: Numerical simulation of sediment release downstream

Giovanni De Cesare, Philippe Heller, Anton Schleiss, Azin Amini

The Klingnau reservoir, situated in north Switzerland, suffers from sedimentation in its left enlargement. The dam is placed in the Aare River about 1 km upstream of its confluence with the Rhine. Due to natural conservation and flood protection reasons, i ...

CRC Press/Balkema2014

Morphodynamic differences induced by different confluence angles in widen confluences

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

River widening is commonly used as a solution for the rehabilitation of rivers with the main purposes of allowing the river to adjust to its natural dynamics and to improve riparian and instream habitat for flora and fauna, by increasing the heterogeneity ...

CRC Press/Balkema2014

Comprehensive numerical simulations of sediment transport and flushing of a Peruvian reservoir

Giovanni De Cesare, Philippe Heller, Anton Schleiss, Azin Amini

Numerical modeling of sediment transport in reservoirs, especially for sudden events such as flushing, is still a challenging research topic. In the present study, sediment transport and sediment flushing are simulated for a Peruvian reservoir. Situated in ...

CRC Press/Balkema2014

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