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Choi, BongJun (author), Huijsmans, R.H.M. (author)
conference paper 2016
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Hosseini, S.M. (author), Akkerman, I. (author), Veldman, A.E.P. (author), Huijsmans, R.H.M. (author)
conference paper 2016
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Veldman, AEP (author), Luppes, R (author), van der Plas, P (author), van der Heiden, HJL (author), Duz, B. (author), Seubers, H. (author), Helder, J. (author), Bunnik, T (author), Huijsmans, R.H.M. (author)
During the development of the ComFLOW simulation method many challenges have to be tackled concerning the flow modelling and the numerical solution algorithm. Examples hereof are wave propagation, absorbing boundary conditions, fluid–solid body interaction, turbulence modeling and numerical efficiency. Some of these challenges will be discussed...
conference paper 2016
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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
Wind energy as an auxiliary form of propulsion for commercial ships has again become of great interest as a possible response to volatile fuel prices and increasingly stringent environmental regulations. A well-founded performance prediction tool is a key prerequisite for the further development of this promising technology, and with the support...
conference paper 2016
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Bordogna, G. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), Fossati, Fabio Vittorio (author), Belloli, Marco (author)
In recent years wind-assisted propulsion for commercial ships has gained an increasing interest as valuable alternative to reduce fuel pollutant emissions. However, the development of feasible and commercially viable wind propulsion systems to partially (or fully) propel a ship is nowadays hindered by the difficulties of modelling the...
conference paper 2016
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Chang, X. (author), Akkerman, I. (author), Huijsmans, R.H.M. (author), Veldman, A.E.P. (author)
The CFD simulation tool ComFLOW is extended to investigate the characteristics of wave motions in the presence of steady uniform currents. Initially, the inflow boundary is the superposition of waves and current. Effect of the latter on the former is resolved by solving Navier-Stokes equations within the domain as a next step. A Generating and...
conference paper 2016
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Choi, B. (author), Huijsmans, R.H.M. (author)
A bow wave breaking is one of the most prominent factors to be considered regarding the nonlinearity of added resistance for a ship. Considering the stability of the bow wave breaking, which is mostly influenced by the ship speed and the waterline entrance angle, can enhance understanding of the nonlinearity. Understanding of the nonlinearity...
conference paper 2016
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Jacobi, G. (author), Thill, C.H. (author), Huijsmans, R.H.M. (author)
The particle image velocimetry (PIV) technique has become a reliable method for capturing the velocity field and its derivatives, even in complex flows and is now also widely used for validation of numerical codes. As the imaging system is sensitive to vibrations, the application in environments such as towing tanks makes it a challenging task....
conference paper 2016
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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 attention is focused on the effect of various VOF methods on efficient and accurate simulation of free surface water waves. For this purpose, we will compare several VOF methods in numerical simulations of propagating waves where strong nonlinear behavior is dominant in the flow. Comparisons and discussions will be provided to...
conference paper 2016
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Bonci, M. (author), de Jong, P. (author), van Walree, F. (author), Renilson, M. (author), Keuning, L. (author), Huijsmans, R. (author)
conference paper 2017
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Bonci, M. (author), Renilson, M. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
conference paper 2017
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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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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
A Reynolds-Averaged Navier Stokes computational fluid dynamics (RANS-CFD) package will be one of the primary tools used during the development of a performance prediction program for Wind-Assisted commercial ships. The modelling challenge presented by large separated flow structures in the wake of the sailing ship points to a conscientious...
conference paper 2017
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Bonci, M. (author), de Jong, Pepijn (author), van Walree, Frans (author), Renilson, Martin (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
In order to provide an insight into the manoeuvring of high speed crafts, an experimental study was undertaken at the towing tank of Delft University of Technology, using a rescue vessel of the Royal Netherlands Sea Rescue Institution (KNRM).<br/>
conference paper 2017
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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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Bordogna, G. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), Belloli, M. (author)
journal article 2018
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Gadi, Ratnakar (author), Huijsmans, R.H.M. (author), Akkerman, I. (author), van 't Veer, A.P. (author)
conference paper 2018
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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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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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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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