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Battegazzore, Andrea (author)Race cars use aerodynamic downforce to reduce the lap times by increasing grip. Diffusers, upswept ramps located at the rear of a vehicle, are often used to enhance downforce. This investigation proposes a novel LPT facility featuring HFSB, LED illumination, and high-speed cameras to characterize the flow inside automotive diffusers. An RC car,...master thesis 2024
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Al Hasani, M.M.K. (author)Distributed Acoustic Sensing (DAS) is a versatile dynamic strain sensing method that has been adopted for a wide range of seismic applications. In DAS, optical fibres are interrogated and used as sensors, where a strain or strain-rate measurement is made along a specific length of the fibre, called the gauge length. Its main appeal is the...doctoral thesis 2024
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Muller, K. (author)This thesis describes methods and first analyses to study the shape and motion of a large school of approximately 2000 Harengula clupeola (false herring) in three-dimensional space. This school of fish was present at the large-scale and publicly accessible ocean aquarium of the Rotterdam zoo, in the Netherlands known as Diergaarde Blijdorp, from...doctoral thesis 2023
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Greco, Roberto (author), Marino, Pasquale (author), Bogaard, T.A. (author)Occurrence of rainfall-induced landslides is increasing worldwide, owing to land use and climate changes. Although the connection between hydrology and rainfall-induced landslides might seem obvious, hydrological processes have been only marginally considered in landslide research for decades. In 2016, an advanced review paper published in...journal article 2023
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Ruan, Tiancheng (author), Wang, Hao (author), Jiang, Rui (author), Li, Xiaopeng (author), Xie, N. (author), Xie, Xinjian (author), Hao, Ruru (author), Dong, Changyin (author)Urged by a close future perspective of a traffic flow made of a mix of human-driven vehicles and automated vehicles (AVs), research has recently focused on studying the traffic flow characteristics of Adaptive Cruise Controls (ACCs), the most typical AV. However, in most works, the ACC system is studied under a simplifying and unrealistic...journal article 2023
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Schoenmakers, Max (author)This research is aimed at creating a generic design method for infiltration drywells on sandy soils by acquiring knowledge on the functioning of these wells. Infiltration drywells are vertical infiltration pipes that are installed above the groundwater table and through which stormwater is drained to the subsurface. Infiltration drywells can...master thesis 2022
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Feng, Y. (author), Duives, D.C. (author), Hoogendoorn, S.P. (author)Exit choice is vital to pedestrians’ survival during evacuations. This paper presents the results of a VR experiment and a field experiment to study pedestrian exit choice behaviour during evacuations. Primarily, we compared pedestrian exit choice behaviour with a VR experiment and a field experiment to determine the ecological validity of a...journal article 2021
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Chrysochoidis-Antsos, N. (author), Amoros, Andrea Vilarasau (author), van Bussel, G.J.W. (author), Mertens, Sander M. (author), van Wijk, A.J.M. (author)This paper assesses wind resource characteristics and energy yield for micro wind turbines integrated on noise barriers. An experimental set-up with sonic anemometers placed on top of the barrier in reference positions is realized. The effect on wind speed magnitude, inflow angle and turbulence intensity is analysed. The annual energy yield...journal article 2020
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Heemskerk, Iris (author)When a large ship enters a port the vessel is navigated by the pilots instead of the captain due to safety reasons. The final part of the berthing manoeuver is the most critical and consists of the vessel moving laterally towards the quay wall. At this point the vessel does not use its own propulsion force anymore but is pushed by the tugboats....master thesis 2020
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de Gast, T. (author)This thesis presents an investigation of the use and applicability of statistical methods in site investigation and subsequent analyses of dykes and embankments. This comprises a comprehensive site investigation via Cone Penetration Tests (CPTs) and laboratory experiments on sampled material, a large scale field test, and statistical analysis of...doctoral thesis 2020
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van Bemmelen, C.W.T. (author), de Schipper, M.A. (author), Darnall, J. (author), Aarninkhof, S.G.J. (author)Beach scarps are nearly vertical seaward facing sandy cliffs within the cross-shore beach profile. These features are often associated with eroding (nourished) coastlines and can reach heights of O(2–3 m). An analysis of a six-year dataset of beach scarp presence at the nourished Sand Engine beach shows that the formation of beach scarps at the...journal article 2020
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Feng, Y. (author), Duives, D.C. (author), Daamen, W. (author), Hoogendoorn, S.P. (author)Understanding pedestrian exit choice behavior during emergency situations is important for improving evacuation efficiency. Virtual Reality is a promising technique that can be used to study pedestrian evacuation behavior. However, studies comparing evacuation behavior in real and virtual environments are still scarce. This paper explores...conference paper 2019
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Lashley, Christopher H. (author), Bertin, Xavier (author), Roelvink, D. (author), Arnaud, Gaël (author)Wave run-up and dune overwash are typically assessed using empirical models developed for a specific range of often-simplistic conditions. Field experiments are essential in extending these formulae; yet obtaining comprehensive field data under extreme conditions is often challenging. Here, we use XBeach Surfbeat (XB-SB)-a shortwave-averaged...journal article 2019
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Sous, Damien (author), Tissier, M.F.S. (author), Rey, Vincent (author), Touboul, Julien (author), Bouchette, Frédéric (author), Devenon, Jean Luc (author), Chevalier, Cristele (author), Aucan, Jerôme (author)This paper reports a combined observational and numerical study of wave transformation over barrier reefs. The field instrumentation, which consists in a cross-shore network of pressure sensors and one high resolution velocity profiler, has been deployed for more than two months over the Ouano reef barrier, New Caledonia. The combined...journal article 2019
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Zhang, L. (author), Slob, E.C. (author)Multiple reflections are often considered as noise in seismic data. Dealing with them has attracted much attention from industry and academia. A variety of schemes have been developed for removal of free-surface multiple reflections and success has been achieved in numerical and field datasets. However, less attention has been directed toward...conference paper 2019
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Stegeman, B. (author), Langeveld, J.G. (author), Bogaard, T.A. (author), Clemens, F.H.L.R. (author)Due to the ageing of our underground wastewater infrastructure, leakage of sewers and pressure mains and subsequent infiltration or exfiltration are becoming an increasingly important issue. Herein, we present a novel method to detect and potentially quantify exfiltration from sewer systems under variable flow conditions; the DEST method. The...conference paper 2019
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Muller, K. (author), Tam, D.S.W. (author), Westerweel, J. (author)Obtaining accurate experimental data from Lagrangian tracking and tomographic velocimetry requires an accurate and consistent camera calibration over multiple views. At length-scales that span beyond the laboratory environment obtaining a camera calibration can be challenging. Combining tools developed in computer vision and non-linear camera...conference paper 2018
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Eekhout, J.P.C. (author), Hoitink, A.J.F. (author), Mosselman, E. (author)Alternate bars in rivers and streams develop as a result of differences in length scales involved in the adjustment of flow and sediment transport to irregularities of the bed. The amount of field evidence supporting theoretical insights is highly limited. Here, we present results from a large-scale field experiment in a 600 m long straight...journal article 2013
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Winter, G. (author)Rip currents are narrow, seaward directed flows in the surf zone that can pose a serious threat to swimmers. This issue has received attention particularly on swell dominated coasts (such as the US, Australia, France and UK) where numerous field experiments have been undertaken. However, the threat of rip currents is less recognised on wind-sea...master thesis 2012
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Senechal, N. (author), Abadie, S. (author), Gallagher, E. (author), MacMahan, J. (author), Masselink, G. (author), Michallet, H. (author), Reniers, A. (author), Ruessink, G. (author), Russell, P. (author), Sous, D. (author)A large multi-institutional nearshore field experiment was conducted at Truc Vert, on the Atlantic coast of France in early 2008. Truc Vert’08 was designed to measure beach change on a long, sandy stretch of coast without engineering works with emphasis on large winter waves (offshore significant wave height up to 8 m), a three-dimensional...journal article 2011