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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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On the physical mechanisms for the numerical modelling of flows around air lubricated ships

Rotte, G.M. (author), Zverkhovskyi, Oleksandr (author), Kerkvliet, Maarten (author), van Terwisga, T.J.C. (author)

Air lubrication techniques are very promising in reducing ship drag. It has been demonstrated that air cavity applications can realise propulsive power reduction percentages of 10-20% due to the reduction of the frictional resistance [1, 2]. However, a complete understanding of the two-phase flow physics involved with air cavity flows is still...

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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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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Time domain prediction of seakeeping behaviour of catamarans

Kara, Fuat (author)

journal article 2015

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Hydro-elastic response of ship structures to slamming induced whipping

Tuitman, J.T. (author)

Slamming induced whipping can significantly increase the structural loading of ships. Although this is well-known, the whipping contribution to the structural loading is rarely taken into account when computing the structural loading. An exception are the "dynamic loading" factors found in Classification Societies rules. Currently there are no...

doctoral thesis 2010

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Design development and evaluation of affordable high speed naval vessels for offshore service

Keuning, J.A. (author)

conference paper 2007

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Design Development and Evaluation Of Affordable High Speed Naval Vessels for Offshore Service

Sheinberg, Rubin (author), Cleary, C. (author), Stambaugh, K. (author), Keuning, Lex (author)

report 2006

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Improvement of seakeeping predition methods for high speed vessels with transom stern

Ahmed, T.M. (author), Du, S.X. (author), Hudson, D.A. (author), Kingsland, P.W. (author), Temarel, P. (author)