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Lovato, S. (author), Toxopeus, S.L. (author), Settels, J.W. (author), Keetels, G.H. (author), Kirichek, Alex (author)The presence of mud layers on the bottom of ports and waterways can have negative effects on the hydrodynamic behaviour of marine vessels. This numerical study investigates the effect of muddy seabeds on the full-scale resistance of an oil tanker sailing straight ahead. The objective is to determine the influence of factors such as the...journal article 2024
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van der Sar, Iris G. (author), van Jaarsveld, Nynke (author), Spiekerman, Imme A. (author), Toxopeus, Floor J. (author), Langens, Quint L. (author), Wijsenbeek, Marlies S. (author), Dauwels, J.H.G. (author), Moor, Catharina C. (author)Electronic nose (eNose) technology is an emerging diagnostic application, using artificial intelligence to classify human breath patterns. These patterns can be used to diagnose medical conditions. Sarcoidosis is an often difficult to diagnose disease, as no standard procedure or conclusive test exists. An accurate diagnostic model based on...journal article 2023
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Lovato, S. (author), Kirichek, Alex (author), Toxopeus, S.L. (author), Settels, J.W. (author), Keetels, G.H. (author)When investigating the effect of muddy seabeds on marine vessels using Computational Fluid Dynamics (CFD) software, one challenge is to adequately describe the complex non-Newtonian fluid behaviour of mud. Although a number of rheological models have been proposed in the past, mud sediments are often simply regarded either as highly viscous...journal article 2022
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Lovato, S. (author), Keetels, G.H. (author), Toxopeus, S. L. (author), Settels, J. W. (author)This article presents a new turbulence closure based on the k-ω SST model for predicting turbulent flows of Herschel–Bulkley fluids, including Bingham and power-law fluids. The model has been calibrated with direct numerical simulations (DNS) data for fully-developed pipe flow of shear-thinning and viscoplastic fluids. The new model shows...journal article 2022
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Lovato, S. (author), Toxopeus, S.L. (author), Settels, J.W. (author), Keetels, G.H. (author)The ship’s resistance and manoeuvrability in shallow waters can be adversely influenced by the presence of fluid mud layers on the seabed of ports and waterways. Fluid mud exhibits a complex non-Newtonian rheology that is often described using the Herschel–Bulkley model. The latter has been recently implemented in a maritime finite-volume CFD...journal article 2022
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- Lovato, S. (author), Kirichek, Alex (author), Toxopeus, S (author), Settels, Just W. (author), Talmon, A.M. (author), Keetels, G.H. (author) conference paper 2021
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Lovato, S. (author), Toxopeus, Serge Leon (author), Settels, Just W. (author), Keetels, G.H. (author), Vaz, Guilherme (author)The presence of complex fluids in nature and industrial applications combined with the rapid growth of computer power over the past decades has led to an increasing number of numerical studies of non-Newtonian flows. In most cases, non-Newtonian models can be implemented in existing Newtonian solvers by relatively simple modifications of the...journal article 2021
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- Lovato, S. (author), Vaz, Guilherme (author), Toxopeus, Serge Leon (author), Keetels, G.H. (author), Settels, J.W. (author) conference paper 2018
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- Toxopeus, S.L. (author), Simonsen, C.D. (author), Guilmineau, E. (author), Visonneau, M. (author), Xing, T. (author), Stern, F. (author) journal article 2013
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Toxopeus, S.L. (author)In the SIMMAN 2008 workshop, the capability of CFD tools to predict the flow around manoeuvring ships has been investigated. It was decided to continue this effort but to extend the work to the flow around ships in shallow water. In this paper, CFD calculations for the KLVCC2 are presented. The aim of the study is to verify and validate the...conference paper 2011
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Toxopeus, S.L. (author)The present work was initiated in order to improve traditional manoeuvring simulations based on empirical equations to model the forces and moments on the ship. With the evolution of the capability of viscous-flow solvers to predict forces and moments on ships, it was decided to develop a practical method to simulate the manoeuvrability of ships...doctoral thesis 2011
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- Bunnik, T. (author), Toxopeus, S.L. (author) conference paper 2011
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- Bunnik, Tim (author), Toxopeus, Serge (author) conference paper 2011
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- Toxopeus, S.L. (author) conference paper 2011
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- Toxopeus, Serge (author) doctoral thesis 2011
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- Toxopeus, Serge (author) conference paper 2011
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Batenburg, P.A.W. (author), Gill, E.K.A. (author), Drijkoningen, G.G. (author), Toxopeus, G.J. (author)A study was performed to determine the feasibility of reflection seismology for planetary geology taking into account present-day technology advances. An approach based on end-user requirements was applied to assure the scientific usefulness of the results. Thirty applications of a seismic-reflection system for space applications were determined...conference paper 2010
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- Bettle, M. (author), Toxopeus, S.L. (author), Gerber, A. (author) journal article 2010
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- Vaz, Guilherme (author), Toxopeus, Serge (author), Holmes, Samuel (author) conference paper 2010
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Batenburg, P.A.W. (author), Gill, E.K.A. (author), Drijkoningen, G.G. (author), Foing, B.H. (author), Toxopeus, G. (author)A feasibility study is conducted to determine whether reflection seismology systems can be used for planetary geology research. The focus is on systems with up to 20,000 seismic detectors, such as used today in Earth geological research and energy companies. The study follows a top-down systems engineering end-user approach starting with the...conference paper 2009