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document

Hydrodynamics of wind-assisted ship propulsion verification and validation of RANS methodology

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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Validation of a simple aerodynamic model capable to predict the interaction effects occuring between two generic wind propulsion systems

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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Generating and absorbing boundary conditions for combined wave-current simulations

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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An analysis method to evaluate the added resistance in short waves considering bow wave breaking

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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The application of particle image velocimetry for the analysis of high-speed craft hydrodynamics

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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Efficient and accurate PLIC-VOF techniques for numerical simulations of 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 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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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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Wind-assist ship propulsion

Bordogna, G. (author), van der Kolk, N.J. (author), Huijsmans, R.H.M. (author), Keuning, J.A. (author), Fossati, F.V. (author)

Development of a Performance Prediction Program for Commercial Ships

poster 2015

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Wind-assisted ship propulsion: A review and development of a performance prediction program for commercial ships