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Jumelet, Daan (author), van Gent, M.R.A. (author), Hofland, Bas (author), Kuiper, C. (author)Physical model tests have been performed to study static stability of rock-armoured mild slopes. Current stability design formulae for steeper rock-armoured slopes focus on plunging and surging waves. Slopes of 1:6 and milder usually have more spilling breakers which decreases the load. Also, on mild slopes displaced rocks more often remain...journal article 2024
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de Almeida Sousa, E. (author)Hydraulic structures are crucial for navigation, water management and flood protection in low-lying coastal and delta regions. Their importance is expected to continue growing in the coming years, because of the consequences of climate change and the continuous development and urbanization of these regions combined with more strict safety...doctoral thesis 2023
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Shi, Rui (author), Wüthrich, D. (author), Chanson, Hubert (author)This experimental study investigated the air-water flow properties and bubble characteristics in hydraulic jumps with Froude numbers Fr<sub>1</sub> = 2.4 and 6.3, using four dual-tip phase detection probes with sensor sizes from 0.25 mm to 0.64 mm. The hydraulic jumps were characterized by a fully breaking roller with substantial air...journal article 2023
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van Gent, M.R.A. (author), Buis, L. (author), van den Bos, J.P. (author), Wüthrich, D. (author)Wave transmission at low-crested coastal structures has been studied, based on physical model tests with trapezoidal impermeable, permeable and perforated structures. The differences between wave transmission at impermeable and permeable structures are relatively limited. For a perforated hollow structure with an impermeable vertical screen...journal article 2023
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Marino, Massimiliano (author), Stagnitti, Martina (author), Stancanelli, L.M. (author), Musumeci, Rosaria Ester (author), Foti, Enrico (author)The dynamics of gravity currents propagating beneath intermediate water waves is investigated in the present study. Laboratory experiments were carried out in a wave flume, in which saltwater was released into freshwater by means of a point-release setup in the presence of a fully developed wave field. Results revealed a series of interesting...journal article 2023
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Gutiérrez Martínez, Jorge (author), Bezner, Maor (author), Molenkamp, A. (author), van den Bos, J.P. (author), Hofland, Bas (author), Leblanc, Philippe (author), Rella, Andrew (author), Rosenberg, Yaeli (author), Sella, Ido (author)ECOncrete®‘s Coastalock is an ecologically designed armour unit, providing an alternative and/or a complement to traditional armour layers with ecologically enhanced armouring that provides shoreline stabilization, while also creating well-defined local ecosystems that mimic natural rock pools. The 2D physical model tests performed at TU Delft...conference paper 2023
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Cademartori, Giulia (author), Oneto, Luca (author), Valdenazzi, Federica (author), Coraddu, A. (author), Gambino, Andrea (author), Anguita, Davide (author)The prediction of ship motions and quiescent periods, is of paramount importance for the maritime industry. The capability to predict these events sufficiently in advance has the potential to improve the safety and efficiency of several marine operations, such as landing and take-off on aircraft carriers, transfer of cargo, and mating...review 2023
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Valchev, Iliya (author), Coraddu, A. (author), Kalikatzarakis, Miltiadis (author), Geertsma, R.D. (author), Oneto, Luca (author)Monitoring and evaluating the biofouling state and its effects on the vessel's hull and propeller performance is a crucial problem that attracts the attention of both academy and industry. Effective and reliable tools to address this would allow a timely cleaning procedure able to trade off costs, efficiency, and environmental impacts. In...review 2022
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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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Estrella, Jorge (author), Wüthrich, D. (author), Chanson, Hubert (author)A hydraulic jump is a region of rapidly-varied flow that is extremely turbulent. While the one-dimensional continuity and momentum principles have been successfully applied to express the relationships between upstream and downstream conditions, the three-dimensional equations cannot be resolved without some complicated turbulence closure,...journal article 2022
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Wüthrich, D. (author), Shi, Rui (author), Chanson, Hubert (author)Abstract: Hydraulic jumps are commonly employed as energy dissipators to guarantee long-term operation of hydraulic structures. A comprehensive and in-depth understanding of their main features is therefore fundamental. In this context, the current study focused on hydraulic jumps with low Froude numbers, i.e. Fr<sub>1</sub> = 2.1 and 2.4, at...journal article 2022
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Wave overtopping discharges at rubble mound breakwaters including effects of a crest wall and a bermvan Gent, M.R.A. (author), Wolters, Guido (author), Capel, Alex (author)Physical model tests have been performed to study wave overtopping at rubble mound breakwaters, including breakwaters with a crest wall, breakwaters with a berm, and breakwaters with a crest wall and a berm. For rubble mound structures with a protruding crest wall or with a stable berm, limited information is available in literature even...journal article 2022
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Nina, Yvan Arosquipa (author), Shi, Rui (author), Wüthrich, D. (author), Chanson, Hubert (author)At hydraulic structures, some strong interactions may develop between fast flowing waters and the air adjacent to the water in motion that enhance the air-water transfer of atmospheric and volatile gases in the flow. In turn, in-stream structures may contribute to the aeration and re-oxygenation during overflow. The present study aims to...journal article 2022
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Coraddu, A. (author), Kalikatzarakis, Miltiadis (author), Theotokatos, Gerasimos (author), Geertsma, R.D. (author), Oneto, Luca (author)Accurate, reliable, and computationally inexpensive models of the dynamic state of combustion engines are a fundamental tool to investigate new engine designs, develop optimal control strategies, and monitor their performance. The use of those models would allow to improve the engine cost-efficiency trade-off, operational robustness, and...book chapter 2022
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Arosquipa Nina, Yvan (author), Shi, Rui (author), Wüthrich, D. (author), Chanson, Hubert (author)On a stepped spillway, the staircase invert profile generates some intense turbulent dissipation during the spill, associated with a significant reduction of kinetic energy, as well as strong self-aeration. The present study focused on the effects of inclined downward steps on the air-water flow properties, flow resistance, and head losses...journal article 2022
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Arosquipa Nina, Yvan (author), Shi, Rui (author), Wüthrich, D. (author), Chanson, Hubert (author)Self-aerated free-surface flow studies have a more recent history compared to classical fluid dynamics. Traditional velocimetry techniques are adversely affected by the presence of gas–liquid interfaces. In the present study, detailed air-water flow measurements were performed in a highly turbulent free-surface flow, and three velocimetry...journal article 2022
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Wittekoek, B. (author), Van Eekelen, S. J.M. (author), Terwindt, J. (author), Korff, M. (author), Van Duijnen, P. G. (author), Detert, O. (author), Bezuijen, A. (author)The use of geogrids to anchor Sheet Pile Walls (SPW) is relatively new. A series of small-scale tests was performed to investigate the behaviour of geogrid-Anchored SPWs subjected to strip footing surcharge loading. Particle Image Velocimetry (PIV) techniques were used to measure soil displacement and analyse the global failure mechanism and...journal article 2022
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Dào, H.T. (author)In the past decade the role of wooden fences, containing brushwood and branches, in efforts to restoring mangroves has been recognized since a vast reduction of mangroves occurred along the Mekong deltaic coast. This study aims to better understand the hydrodynamic performance related to the possible mechanism of wave reduction and the influence...doctoral thesis 2021
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den Bieman, Joost P. (author), van Gent, M.R.A. (author), van den Boogaard, Henk F.P. (author)Coastal structures are often designed to a maximum allowable wave overtopping discharge, hence accurate prediction of the amount of wave overtopping is an important issue. Both empirical formulae and neural networks are among the commonly used prediction tools. In this work, a new model for the prediction of mean wave overtopping discharge is...journal article 2021
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- Harms, J.M. (author), Chavarrías, Víctor (author), Yossef, Mohamed (author), Bricker, J.D. (author), Uijttewaal, W.S.J. (author), Yildiz, B. (author) poster 2021