Searched for: author%3A%22Franca%2C+M.J.%22
(1 - 16 of 16)
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Buffon, P. (author), Uijttewaal, W.S.J. (author), Franca, M.J. (author), Valero Huerta, Daniel (author)
conference paper 2022
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Paudel, Sandesh (author), Singh, Umesh (author), Crosato, A. (author), Franca, M.J. (author)
Assuming that the equilibrium geometry of river channels does not depend on their initial state but solely on boundary conditions, several formulas have been derived that relate the channel depth and width to the river bankfull discharge and bed material. However, due to the existence of a threshold for sediment motion and the strong non...
journal article 2022
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Crosato, A. (author), Grissetti-Vázquez, A. (author), Bregoli, F. (author), Franca, M.J. (author)
Climate change has a direct influence on both hydrology and floodplain vegetation of water courses, which are key players in river morphodynamics. The river system response to climate change is complex and the effects of non-linear interactions between alterations in water, sediment and vegetation remain incompletely understood. Which of...
journal article 2022
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Panthi, Manisha (author), Lee, Aaron A. (author), Dahal, Sudesh (author), Omer, Amgad (author), Franca, M.J. (author), Crosato, A. (author)
Flushing is a common measure to manage and reduce the amount of sediment stored in reservoirs. However, the sudden release of large volumes of sediment abruptly increases the suspended solids concentration and alters the riverbed composition. Similar effects can be produced also by natural flood events. Do flushing operations have more...
journal article 2022
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Valero, Daniel (author), Belay, Biruk S. (author), Moreno-Rodenas, Antonio (author), Kramer, Matthias (author), Franca, M.J. (author)
Current riverine plastic monitoring best practices mainly consider surface observations, thus neglecting the underlying distribution of plastics in the water column. Bias on plastic budgets estimations hinders advances on modelling and prediction of plastics fate. Here, we experimentally disclose the structure of plastics transport in surface...
journal article 2022
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Qatarneh, Abdullah F. (author), Dupont, Capucine (author), Michel, Julie (author), Simonin, Loïc (author), Beda, Adrian (author), Matei Ghimbeu, Camelia (author), Ruiz-Villanueva, Virginia (author), da Silva, Denilson (author), Franca, M.J. (author)
Producing hard carbon from lignocellulosic biomass has been the focus of recent studies as a promising source of anode material for Na-ion batteries. Woody biomass is a potential source, but it is already well valorized. Consequently, river driftwood can be an excellent alternative, especially since it is a disturbing waste for dam regulators...
journal article 2021
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Calamita, Elisa (author), Siviglia, Annunziato (author), Gettel, Gretchen M. (author), Franca, M.J. (author), Scott Winton, R. (author), Teodoru, Cristian R. (author), Schmid, Martin (author), Wehrli, Bernhard (author)
Recent studies show that tropical hydroelectric reservoirs may be responsible for substantial greenhouse gas emissions to the atmosphere, yet emissions from the surface of released water downstream of the dam are poorly characterized if not neglected entirely from most assessments. We found that carbon dioxide (CO<sub>2</sub>) emission...
journal article 2021
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Buffon, P. (author), Valero, Daniel (author), Uijttewaal, W.S.J. (author), Franca, M.J. (author)
abstract 2021
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Ouro, Pablo (author), Juez, Carmelo (author), Franca, M.J. (author)
Large-Eddy Simulations (LES) are used to investigate the governing processes involved in mass and momentum transfer between the flow in the main channel and symmetrically-distributed lateral bank cavities. In-cavity free-surface velocities, based on laboratory measurements made in an open channel, are used to validate the numerical results. A...
journal article 2020
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Ruangpan, L. (author), Vojinovic, Zoran (author), Plavšić, Jasna (author), Doong, Dong Jiing (author), Bahlmann, Tobias (author), Alves, Alida (author), Tseng, L.H. (author), Randelović, Anja (author), Franca, M.J. (author)
Hydro-meteorological risks are a growing issue for societies, economies and environments around the world. An effective, sustainable response to such risks and their future uncertainty requires a paradigm shift in our research and practical efforts. In this respect, Nature-Based Solutions (NBSs) offer the potential to achieve a more effective...
journal article 2020
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Osório, A.L.N.A. (author), Mosselman, E. (author), Franca, M.J. (author), Creech, C. (author)
Longitudinal training walls are man-made river dividers. They were built in the Netherlands as a replacement of perpendicular groynes as a river training alternative to decrease flood risk and stop the ongoing bed degradation, while still allowing safe navigation. The efficiency of these structures relies on the long-term stability of the two...
conference paper 2020
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Stähly, Severin (author), Franca, M.J. (author), Robinson, Christopher T. (author), Schleiss, Anton J. (author)
River reaches downstream dams where a constant residual flow discharge is imposed, often lack sediment supply and periodic inundation due to the absence of natural flood events. In this study, a two-year return flood was released from an upstream reservoir and combined with sediment replenishment to enhance instream habitat conditions downstream...
journal article 2019
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Zordan, Jessica (author), Schleiss, Anton J. (author), Franca, M.J. (author)
We investigate to what extent the initial conditions (in terms of buoyancy and geometry) of saline gravity currents flowing over a horizontal bottom influence their runout and entrainment capacity. In particular, to what extent the effect of the introduction of an inclined channel reach, just upstream from the lock gate, influences the...
journal article 2019
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Navas-Montilla, A. (author), Juez, C. (author), Franca, M.J. (author), Murillo, J. (author)
Turbulent shallow flows are characterized by the presence of horizontal large-scale vortices, caused by local variations of the velocity field. Apart from these 2D large vortices, small scale 3D turbulence, mainly produced by the interaction of the flowing water with the solid boundaries, is also present. The energy spectrum of turbulent...
journal article 2019
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Venuleo, Sara (author), Pokrajac, Dubravka (author), Schleiss, Anton J. (author), Franca, M.J. (author)
We present the results of laboratory investigations of continuously-fed density currents that propagate first over a smooth horizontal bed and then over a porous substrate of limited length. Inflow discharge, initial excess density, and substrate porosities are varied. Density measurements, acquired through an image analysis technique, are...
journal article 2019
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Juez, Carmelo (author), Schärer, C. (author), Jenny, H. (author), Schleiss, A. J. (author), Franca, M.J. (author)
Overbank sedimentation is predominantly due to fine sediments transported under suspension that become trapped and settle in floodplains when high-flow conditions occur in rivers. In a compound channel, the processes of exchanging water and fine sediments between the main channel and floodplains regulate the geomorphological evolution and are...
journal article 2019
Searched for: author%3A%22Franca%2C+M.J.%22
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