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Giovanni De Cesare

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Related publications (219)

Kariba plunge pool rehabilitation

Giovanni De Cesare, Anton Schleiss, Azin Amini, Claudia Ylla Arbos, Ivan Stojnic

The Kariba Dam is a 128 m high arch dam located on the Zambezi River, between Zambia and Zimbabwe. It forms the Kariba lake, with a surface of 5400 km2 and a capacity of 185 km3. In the 20 years following dam construction, heavy rainfalls required frequent ...

2018

Dimensionnement des orifices pour étranglement des cheminées d’équilibre

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

Les orifices sont utilisés dans divers domaines de l’hydraulique par exemple pour des étranglements au pied de cheminées d’équilibre sans modification constructive de la cheminée d’équilibre. Dans ce cas, un orifice permet d’adapter un aménagement hydroéle ...

2018

Effect of spilling from adjacent orifices on the velocity field and pressures in front of needle stop-logs

Giovanni De Cesare, Azin Amini, Cédric Bron, Ivan Stojnic

In this study, the effect of spilling from neighboring sluice gates on stop-logs was experimentally investigated on a 1:65 physical scale model comprised of a double arch dam, a reservoir area, six spillway orifices and two stop-logs. Two types of measurem ...

2018

Amélioration du calage du modèle hydrologique du bassin de la grande-eau en suisse avec des produits spatialisés de précipitation, température et couverture de neige

Giovanni De Cesare, Javier García Hernández, Alain Tommy Foehn

2018

Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration

Giovanni De Cesare

Soil andwater bioengineering is a technology that encourages scientists and practitioners to combine their knowledge and skills in the management of ecosystems with a common goal to maximize benefits to both man and the natural environment. It involves tec ...

2018

Behaviour of a scour protection overlay with randomly distributed concrete prisms in plunge pools downstream of mobile barrages for exceptional operation conditions

Giovanni De Cesare, Anton Schleiss, Pedro Filipe De Almeida Manso, Sabine Chamoun, Davide Wüthrich

Uncontrolled scour is affecting multiple mobile dams. The plunge pool of the Chancy-Pougny barrage, located on the Rhone River bordering France and Switzerland, has recently been reported to develop in a potentially unfavourable direction after almost 100 ...

2018

Experimental Study at Prototype Scale of a Self-priming Free-Surface Siphon

Giovanni De Cesare, Paloma Furlan

This study is within the frame of the construction of the rail link between Geneva Cornavin station, Eaux-Vives station and Annemasse (CEVA). The project area is located at a cut-and-cover tunnel built by slurry walls located in the alluvium of the Foron R ...

Springer2018

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

Physical and 3D numerical simulation of the flow in the tailrace of a hydroelectric power plant to design fishway entrances

Giovanni De Cesare, Pierre Bourqui

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

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

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

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

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

Head losses and influence length of sharp-edged and rounded orifices under steady flow conditions

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

Orifices have been largely studied either for flow metering or for producing head losses. An orifice which is used as a flow meter is well defined in ISO 5167. All the geometrical parameters are defined to obtain discharges as accurate as possible. However ...

2017

Investigation of venting turbidity currents in the Rudbar-Lorestan reservoir in Iran

Giovanni De Cesare, Anton Schleiss, Azin Amini, Sabine Chamoun, Sara Venuleo

Venting of turbidity currents is known as an efficient measure to prevent reservoir sedimentation and is applied in many reservoirs globally. It has several economic and ecological advantages compared with other evacuation methods. In the literature, numer ...

2017

Experimental study at prototype scale of a self-priming free surface siphon

Giovanni De Cesare, Paloma Furlan

2017

Management of turbidity current venting in reservoirs under different bed slopes

Giovanni De Cesare, Anton Schleiss, Sabine Chamoun

The lifetime and efficiency of dams is endangered by the process of sedimentation. To ensure the sustainable use of reservoirs, many sediment management techniques exist, among which venting of turbidity currents. Nevertheless, a number of practical questi ...

Elsevier2017

Measurement of the deposition of fine sediments in a channel bed

Giovanni De Cesare, Mário Jorge Rodrigues Pereira Da Franca, Sabine Chamoun, Jessica Zordan

Various instruments allowing the measurements of bottom deposits of fine sediments exist. Different techniques are developed in order to suit diverse operating conditions. The present study considers two high-precision instruments, namely, an electrical re ...

2016

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