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Pressure reconstruction from PIV measurements in the bow region of a fast ship

Jacobi, G. (author), Thill, C.H. (author), Huijsmans, R.H.M. (author)

The paper presents velocity measurements, using particle image velocimetry, as well as a reconstruction of hydrodynamic pressures for the analysis of fast ships. Stereoscopic PIV measurements with a towed underwater PIV system are conducted during towing tank tests to obtain the velocity field in the bow region of a fast ship at speeds up to...

journal article 2022

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Low-aspect ratio appendages for wind-assisted ships

van der Kolk, N.J. (author), Akkerman, I. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)

Wind propulsion for commercial ships has been identified as a key component in the energy transition for the maritime industry. The sailing hybrid ship will operate with leeway (drift) angles to produce a lateral force known as sideforce, for steady operation under sail. In this paper, experimental results for the sailing performance of ships...

journal article 2021

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The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas

Hoelzl, M. (author), Huijsmans, G. T.A. (author), Pamela, S. J.P. (author), Bécoulet, M. (author), Nardon, E. (author), Haverkort, J.W. (author), Hu, D. (author), Morales, J. A. (author), Verbeek, M. (author)

JOREK is a massively parallel fully implicit non-linear extended magneto-hydrodynamic (MHD) code for realistic tokamak X-point plasmas. It has become a widely used versatile simulation code for studying large-scale plasma instabilities and their control and is continuously developed in an international community with strong involvements in...

journal article 2021

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Experiments on a Flettner rotor at critical and supercritical Reynolds numbers

Bordogna, G. (author), Muggiasca, S. (author), Giappino, S. (author), Belloli, M. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), van 't Veer, A.P. (author)

The Flettner rotor is attracting increasing attention as a viable technology for wind-assisted ship propulsion. Nonetheless, the influence of the Reynolds number on the aerodynamic performance of rotating cylinders is still unclear and under debate. The present study deals with a series of wind-tunnel experiments on a large-scale Flettner...

journal article 2019

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Wind-tunnel experiments on the aerodynamic interaction between two rigid sails used for wind-assisted propulsion

Bordogna, G. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), Belloli, M. (author)

journal article 2018

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An absorbing boundary condition for free surface water waves

Duz, B. (author), Borsboom, M.J.A. (author), Veldman, A.E.P. (author), Wellens, P.R. (author), Huijsmans, R.H.M. (author)

In this paper, the use of an absorbing boundary condition (ABC) is investigated for the numerical simulation of free surface water waves. An enhanced type of an ABC based on the first- and second-order Higdon boundary conditions is presented. The numerical implementation of the ABC using a staggered grid arrangement is explained in detail....

journal article 2017

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Design of the ExCersion-VCI study: The effect of aerobic exercise on cerebral perfusion in patients with vascular cognitive impairment

Leeuwis, Anna E. (author), Hooghiemstra, Astrid M. (author), Amier, Raquel (author), Ferro, Doeschka A. (author), Franken, Leonie (author), Nijveldt, Robin (author), Kuijer, Joost P A (author), Bronzwaer, Anne Sophie G T (author), van Lieshout, Johannes J. (author), Rietberg, Marc B. (author), Veerbeek, Janne M. (author), Huijsmans, Rosalie J. (author), Backx, Frank J G (author), Teunissen, Charlotte E. (author), Bron, Esther E. (author), Barkhof, Frederik (author), Prins, Niels D. (author), Shahzad, Rahil (author), Niessen, W.J. (author), de Roos, Albert (author), van Osch, Matthias J P (author), van Rossum, Albert C. (author), Biessels, Geert J. (author), van der Flier, Wiesje M. (author)

There is evidence for a beneficial effect of aerobic exercise on cognition, but underlying mechanisms are unclear. In this study, we test the hypothesis that aerobic exercise increases cerebral blood flow (CBF) in patients with vascular cognitive impairment (VCI). This study is a multicenter single-blind randomized controlled trial among 80...

journal article 2017

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Bilge keel loads and hull pressures created by bilge keels fitted to a rotating cylinder

Veer, R. van't (author), Schut, X.B. (author), Huijsmans, R.H.M. (author)

journal article 2015

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High order geometric methods with exact conservation properties

Huijsmans, R.H.M. (author)

journal article 2014

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Loads for use in the design of ships and offshore structures

Huijsmans, R.H.M. (author)

journal article 2013

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Smart control of fast ships. Part 1: A setup for automated proactive control of the thrust used increase the operability of a small planing monohull sailing in head seas

Deyzen, A.F.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)

journal article 2012

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Smart control of fast ships. Part 2: A coceptual model of automated proactive thrust control

Deyzen, A.F.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)

journal article 2012

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Smart control of fast ships - part 1: a setup for automated proactive control of the thrust used to increase the operability of a small planing monohull sailing in head seas

Deyzen, A.F.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)

journal article 2012

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Smart control of fast ships - part 2: a conceptual model of automated proactive thrust control

Deyzen, A.F.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)

journal article 2012

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FROUDE'S LAW OF SIMILITUDE - CONTEMPORARY AND FUTURE SEAKEEPING TESTING

Dallinga, R.P. (author), Huijsmans, R.H.M. (author)

journal article 2011

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Hydrodynamic impact of sandwich structures with vibration isolation and structural damping properties, Report 1779-P

den Besten, Henk (author), Huijsmans, R.H.M. (author), Vredeveldt, A. (author)

journal article 2011

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A Novel Method for Generating Continuously Surfable Waves

Huijsmans, R.H.M. (author)

journal article 2010

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Large-scale LNG sloshing model tests

Bunnik, T.H.J. (author), Huijsmans, R.H.M. (author)

journal article 2009

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3D base: A geometrical data base system for the analysis and visualisation of 3D-shapes obtained from parallel serial sections including three different geomerical representations

Verbeek, F.J. (author), de Groot, M.M. (author), Huijsmans, D.P. (author), Lamers, W.H. (author), Young, I.T. (author)

journal article 1993

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Characterizations of conditional expectation-type operators

De Pagter, B. (author), Dodds, P.G. (author), Huijsmans, C.B. (author)

As is well-known, conditional expectation operators on various function spaces exhibit a number of remarkable properties related either to the underlying order structure of the given function space, or to the metric structure when the function space is equipped with a norm. Such operators are necessarily positive projections which are averaging...

journal article 1988