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van Duin, Ron (author), van den Band, N. (author), de Vries, A. (author), Verschoor, P. (author), Ouasghiri, M. el (author), Warffemius, P. (author), Anand, N. (author), Quak, H.J. (author)Many new logistics initiatives arise based on the principles of resource sharing through crowdsourcing. Sharing unused and/or underused resources can deliver new efficiencies in the logistics value chain in an industry where efficiency is the name of the game. The benefits of applying sharing economy concepts in logistics in terms of higher...conference paper 2022
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de Vries, R. (author), Lantsoght, E.O.L. (author), Steenbergen, R.D.J.M. (author), Fennis, S.A.A.M. (author)In the assessment of existing infrastructure performing only a desk study is often not sufficient to determine the structural reliability of a bridge or viaduct. For concrete structures gathering field data by performing a proof load test offers detailed information about the structural performance. However, the relation between the magnitude...conference paper 2022
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de Vries, R. (author), Vos, Roelof (author)The goal of this study is to analyze how the aero-propulsive benefits of an over-the-wing distributed-propulsion (OTWDP) system at component level translate into an aero-propulsive benefit at aircraft level, and to determine whether this enhancement is sufficient to lead to a reduction in overall energy consumption. For this, the preliminary...conference paper 2022
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aan het Rot, H.N. (author), Kortmann, Rens (author), Verbraeck, A. (author), de Vries, G. (author), Kooreman, M. (author), de Bruin, B.J.E. (author)Tabletop games that require the aid of a human facilitator are typically designed for a physical environment. However, during the COVID-19 pandemic, lockdown measures prevented people from gathering. Therefore, tabletop games were sometimes played and facilitated in a mediated environment using online communication tools instead. But this...conference paper 2022
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de Vries, J.M. (author), Trevisan, E. (author), van der Toorn, J. (author), Das, T. (author), Ferreira de Brito, B.F. (author), Alonso-Mora, J. (author)In unstructured urban canals, regulation-aware interactions with other vessels are essential for collision avoidance and social compliance. In this paper, we propose a regulations aware motion planning framework for Autonomous Surface Vessels (ASVs) that accounts for dynamic and static obstacles. Our method builds upon local model predictive...conference paper 2022
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Pingen, Geert L.J. (author), van Ommeren, Christian R. (author), van Leeuwen, Cornelis J. (author), Fransen, Ruben W. (author), Elfrink, Tijmen (author), de Vries, Yorick C. (author), Karunakaran, Janarthanan (author), Demirović, E. (author), Yorke-Smith, N. (author)Logistics planning is a complex optimization problem involving multiple decision makers. Automated scheduling systems offer support to human planners; however state-of-the-art approaches often employ a centralized control paradigm. While these approaches have shown great value, their application is hindered in dynamic settings with no central...conference paper 2022
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Alattas, A.F.M. (author), de Vries, M.E. (author), Meijers, B.M. (author), Zlatanova, Sisi (author), van Oosterom, P.J.M. (author)A web-based application has been developed, exploiting the integrated model of LADM andIndoorGML to provide indoor navigation based on the user's access rights in an educationalbuilding. Different types of users (students, teachers, visitors, etc.) have different access rights,which also depend on the exact time (e.g. inside or outside office...conference paper 2021
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Pols, C.F.J. (author), Dekkers, P.J.J.M. (author), de Vries, M.J. (author)Learning to engage in scientific inquiry is an important goal in secondary physics education. However, attaining this learning goal continues to be a challenge. We addressed this problem by devising and testing a teaching sequence that aims at developing students’ (aged 14-15) understanding of and adherence to scientific criteria. We observed,...conference paper 2021
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- de Vries, G. (author) conference paper 2021
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- Cipriani, L. (author), de Vries, Jeroen (author), Stauskis, Gintaras (author), Auweck, Fritz (author), Triboi, Roxana (author), Andreucci, Maria Beatrice (author), Cervera Alonso de Medina, Marina (author), Cancela d’ Abreu, Margarida (author), Freire, Maria (author), Carapinha, Aurora (author), a Conceição Castro, Maria (author), Del Pozo, Cristina (author), Deveikienė, Vaiva (author), Gunnlaugsson, Hermann Georg (author), Fekete, Albert (author), Fetzer, Ellen (author), Fabris, Luca (author), Fingerova, Radmila (author), Gazvoda, Davorin (author), Gkoltsiou, Aikaterini (author), Harmanescu, Mihaela (author), Kamenecki, Monika (author), Koscak Miocic-Stosic, Vesna (author), Melone, Antonella (author), Mertens, Elke (author), Meeres, Sophia (author), Ortacesme, Veli (author), Noortman, Adrian (author), Sárospataki, Máté (author), Stiles, Richard (author), Trolf, Norbert (author), Tóth, Attila (author), Tomic Reljic, Dora (author), Tudora, Ioana (author), Valdés Tejera, Esther (author), Valánszki, István (author), Weckman, Emilia (author), Williams, Tony (author), Tutundzic, Andreja (author), Lambertini, Anna (author), Mihova, Katinka (author), Muru, Toomas (author), Dam, Torben (author), Teqja, Zydi (author) conference paper 2021
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Bölk, S.A. (author), de Vries, R. (author), van Arnhem, N. (author), Veldhuis, L.L.M. (author)In this study, unsteady RANS simulations are performed to investigate the effect of over-the-wing (OTW) propeller inclination on the aerodynamic interaction with a wing featuring a plain flap. A comparison to experimental data shows that the numerical approach is capable of modeling the wing and propeller separately and can capture the effect of...conference paper 2021
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Zill, Thomas (author), Iwanizki, Michael (author), Schmollgruber, Peter (author), Defoort, Sebastien (author), Döll, Carsten (author), Hoogreef, M.F.M. (author), de Vries, R. (author), Vankan, Jos (author), Lammen, Wim (author)In the Clean Sky 2 Large Passenger Aircraft (LPA) program the potential of innovative hybrid electric propulsion (HEP) air vehicle concepts has been investigated by the projects ADEC (Advanced Engine and Aircraft Configuration) and NOVAIR (Novel Aircraft Configurations and Scaled Flight Testing Instrumentation). In a combined effort the members...conference paper 2020
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- Riillo, C.A.F. (author), Mijatovic, I. (author), de Vries, H.J. (author) conference paper 2020
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- Peters, Nourian (author), Nikolic, I. (author), de Vries, G. (author) conference paper 2020
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- Wu, Yuhao (author), de Vries, H.J. (author) conference paper 2020
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Duivenvoorden, R.R. (author), Voskuijl, M. (author), Morée, Lars (author), de Vries, J. (author), van der Veen, Finbar (author)The use of formation flight to achieve aerodynamic benefit as applied to rotorcraft is, unlike its fixed-wing counterpart, an unproven principle. This document presents a proof-of-concept of rotorcraft formation flight through a numerical research study, supported by results from an independent wind-tunnel experiment. In both cases, two...conference paper 2020
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Do, T.K.A. (author), Kralli, Vasiliki E. (author), de Vries, S. (author), Nguyen, Viet T. (author), Stive, M.J.F. (author)Cua Dai Beach located adjacent to Cua Dai Inlet is a typical, seasonally varying tidal inlet. This famous beach has suffered extreme erosion since 1995 due to an apparent irregular-periodic process, a decrease of sediment supply from the river and its estuaries and increased squeeze by coastal developments. The main objective of this study is...conference paper 2020
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Mourão Bento, H.F. (author), de Vries, R. (author), Veldhuis, L.L.M. (author)Ducted propellers constitute an efficient propulsion-system alternative to reduce the environmental impact of aircraft. These systems are able to increase the thrust-to-power ratio of a propeller system by both producing thrust and by lowering tip losses of propellers. In this research, steady and unsteady RANS CFD simulations were used to...conference paper 2020
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Hoogreef, M.F.M. (author), de Vries, R. (author), Sinnige, T. (author), Vos, Roelof (author)This paper presents a synthesis of aero-propulsive interaction studies performed at Delft University of Technology, applied to conceptual aircraft designs with distributed hybrid-electric propulsion (DHEP). The studied aero-propulsive interactions include tip-mounted propulsion, wing leading-edge distributed propulsion and boundary-layer...conference paper 2020
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Finger, D. Felix (author), de Vries, R. (author), Vos, Roelof (author), Braun, Carsten (author), Bil, Cees (author)The number of case studies focusing on hybrid-electric aircraft is steadily increasing, since these configurations are thought to lead to lower operating costs and environmental impact than traditional aircraft. However, due to the lack of reference data of actual hybrid-electric aircraft, in most cases, the design tools and results are...conference paper 2020