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Giovanni De Cesare

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Publications associées (219)

Hydraulic design of classical stilling basins downstream of stepped chutes

Giovanni De Cesare, Anton Schleiss, José Pedro Gamito de Saldanha Calado Matos, Michael Pfister, Ivan Stojnic

New design information regarding the hydraulic behaviour of classical stilling basins downstream of stepped chutes is presented and discussed. An extensive experimental campaign revealed that classical stilling basins preceded by stepped chutes cannot be a ...

2020

Hydraulic transients in hydropower systems: from theory to practice

Giovanni De Cesare, Anton Schleiss, David Ferràs Segura

2020

Physical and numerical model studies of the Martigny bend as part of 3rd correction of the Rhone River

Giovanni De Cesare, Stéphanie Joëlle André, Azin Amini, Jean-Noël Saugy

The 3rd correction of the Rhone River (R3) is the largest flood protection project in Switzerland so far. Covering a length of 162 km, it aims to protect some 100,000 people and prevent flood damages, which could raise up to 10 billion CHF for major events ...

CRC press2020

Seismic Behavior of Pine Flat Concrete Gravity Dam Using Microplane Damage-Plasticity Model

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Samuel Luke Vorlet

The response of concrete gravity dams under seismic loads is a major concern of dam safety assessment in earthquake-prone areas. This study focuses on the seismic analysis of the tallest non-overflow monolith of Pine Flat Dam. The paper presents results of ...

Springer, Cham2020

Estimation spatiale des précipitations et assimilation de données de débit pour la prévision hydrologique en milieu alpin

Giovanni De Cesare, Bettina Schaefli, Anton Schleiss, Javier García Hernández, Alain Tommy Foehn, Andrea Rinaldo

L’étude présentée propose des solutions à certains défis rencontrés dans le cadre du système de prévision et de gestion des crues MINERVE du Canton du Valais, opérationnel depuis 2013. Le premier axe de recherche est dédié à l’interpolation spatiale des pr ...

2020

Holistic Design Approach of a Throttled Surge Tank: The Case of Refurbishment of Gondo High-Head Power Plant in Switzerland

Giovanni De Cesare, Samuel Luke Vorlet, Nicolas Jean François Pascal Ghislain Adam, Mona Seyfeddine

In order to increase the installed capacity, the refurbishment of Gondo high-head power plant required a modification of the existing surge tank by installing a throttle at its entrance. In a previous study, the geometry of this throttle was optimized by p ...

2020

The performance of collars on scour reduction at tandem piers aligned with different skew angles

Giovanni De Cesare, Anton Schleiss, Sargol Memar

Local scouring is a leading cause of bridge collapses. To protect bridges against local scouring, different countermeasures have been proposed and tested in the literature. In this study, the performance of collars was evaluated for scour reduction at two ...

2020

A Novel Method for River Bank Detection from Landsat Satellite Data: A Case Study in the Vietnamese Mekong Delta

Giovanni De Cesare, Sameh Ahmad Kantoush

River bank (RB) erosion is a global issue aecting livelihoods and properties of millions of people. However, it has not received enough attention in the Vietnamese Mekong Delta (VMD), i.e., the world’s third largest delta, compared to salinity intrusion an ...

2020

The sediment challenge of Swiss river corridors interrupted by man-made reservoirs

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Samuel Luke Vorlet, Christian Mörtl

Depending on their characteristics and management, man-made reservoirs can have a significant impact on the natural sediment continuity of rivers. We classify different reservoir types and describe potential risks for the dam and downstream river reach. Ou ...

CRC Press2020

Heightening of Very High Gravity Dams: The Case Study of the Grande Dixence

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Basile Clerc

Heightening very high gravity dams is one of the solutions considered as part of the energy transition and to mitigate the effects of climate change. The paper presents a stepwise approach to assess the potential for dam heightening and its impact on the h ...

Springer, Cham2020

Hybrid modeling and design review of throttled surge tanks

Giovanni De Cesare, Bernard Valluy, Samuel Luke Vorlet, Nicolas Jean François Pascal Ghislain Adam, Mona Seyfeddine

The 2050 Swiss Energy Strategy aims to increase the annual production of hydroelectricity by 4% while 90% of the technically feasible potential is already used. The flexibility of high-head storage power plants (HPP), the main pillar of Swiss peak electric ...

2020

Estuarine tidal response to sea level rise: The significance of entrance restriction

Giovanni De Cesare, Steve Hottinger

Estuarine environments, as dynamic low-lying transition zones between rivers and the open sea, are vulnerable to sea level rise (SLR). To evaluate the potential impacts of SLR on estuarine responses, it is necessary to examine the altered tidal dynamics, i ...

2020

Bemessung von klassischen Tosbecken unterhalb von Treppenschussrinnen

Giovanni De Cesare, Anton Schleiss, José Pedro Gamito de Saldanha Calado Matos, Michael Pfister, Ivan Stojnic

Aufgrund des Fortschritts im Talsperrenbau mit Walzbeton (RCC) werden weltweit häufig Treppenschussrinnen erstellt. Nach jeder Schussrinne ist ein hydraulisches Bauwerk zur Energiedissipation vorzusehen, beispielsweise ein Tosbecken. Obwohl die Hydraulik v ...

2020

Quasi-stationary flow structure in turbidity currents

Giovanni De Cesare, Shun Nomura

A turbidity current is a particle-laden current driven by density differences due to suspended sediment particles. Turbidity currents can transport large amounts of sediment down slopes over great distances, and play a significant role in fluvial, lake and ...

IRTCES2020

Influence of geometrical parameters of chamfered or rounded orifices on head losses

Giovanni De Cesare, Anton Schleiss, Nicolas Jean François Pascal Ghislain Adam

Orifices are largely used in pipeline systems. The most common application is to measure the discharge of the water flowing through. However, orifices may be used to adapt hydroelectric power plants submitted to moderate increase of installed generation ca ...

Taylor & Francis Ltd2019

Vermessung des Bielersees – spannende Blicke unter Wasser

Giovanni De Cesare

Das Projekt einer genauen Vermessung des Bielersees ist abgeschlossen. Erstmals wurde für den Seegrund ein neues, detailliertes Geländemodell erstellt und daraus eine Tiefenkarte geschaffen. Das Resultat liefert Antworten auf verschiedene Fragen, welche di ...

2019

Experimental and numerical study on wave-impact on buildings

Giovanni De Cesare, Michael Pfister, Davide Wüthrich, Shun Nomura

Unsteady flows such as tsunamis, impulse waves and dam-break waves can lead to damages and human losses. Hence, specific research to limit casualties and reconstruction costs is needed. The complexity of the phenomena involved suggests that a hybrid experi ...

2019

Short-and-long-term storage volume recovery in a reservoir using a combined mixing-dredging device

Giovanni De Cesare, Anton Schleiss, Azin Amini, Arianna Yadira Onate Paladines

2019

Improving hydropower flexibility by synergizing independently managed utilities

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Steve Crettenand, Sabine Chamoun, Vincent Gaertner

Increasing the flexibility of hydropower allows operators to produce at optimal time ranges, not only dependent on the demand flow but also on the price trends. However, the possibility to improve hydropower flexibility can be hindered when assets are mana ...

Hydropower&Dams, Aqua Media International2019

Application of an Ensemble Kalman filter to a semi-distributed hydrological flood forecasting system in alpine catchments

Giovanni De Cesare, Javier García Hernández, Alain Tommy Foehn, Anne Schwob

One of the key success factor for hydrological forecasts is the establishment of initial conditions that represent well the conditions of the simulated basin at the beginning of the forecast. Real-time Data Assimilation (DA) has been shown to allow improvi ...

2019

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