An investigation of numerical analysis for modeling free-surface elevation from flow over a shallowly submerged 2D naca0012 hydrofoil

The bulbous bow is a common feature for large displacement vessels. The purpose of the bulbous bow is to reduce the bow wave, hereby making use of wave cancellation theory. The main drawback of these type of bows is that the drag reduction effect is only present for a limited range of sailing speeds. If the transit velocity is altered, the...

Vessel's Performance Modelling: Developing a digital twin for the propulsion system, a Spliethoff group case

In this thesis, it was examined how high-frequency operational data collected from an automated recording system, can be used to develop a vessel’s performance model. Both the traditional and the Machine Learning (ML) approach were examined. In the traditional approach, every component of the propulsion plant was examined separately, while...

A two-dimensional boundary element method for floating cylinders of arbitrary shape in frequency domain with power take off and second order predictions

A two-dimensional (2D) panel method is developed to find the first and second order wave forces acting on a semi-submerged cylinder in regular waves. The panel method is based on potential flow and the waves are modeled for both finite and infinite water depth. The motion is limited to heave, but allows for extensions to other modes as well. It...

Hydro-elasticity of a Bulge Wave Energy Converter in the 2D Frank Close-Fit Method

Hydro-elasticity is important in the evaluation of a category of wave energy converters (WEC). In this paper, the hydro-elastic response of a bulge wave energy converter is examined by the implementation of a two-dimensional potential theory. The numerical implementation of the Frank Close-Fit method (FCFM) defines hydrodynamic coefficients and...

Concept development of an unmanned, non-lethal, anti-piracy craft: The Beagle

Maritime piracy has been a problem for the last decades and peaked in 2010. This resulted in large investments in anti-piracy measures, but as piracy waned over the following years, so did the investments in anti-piracy measures. This could be an indication that the stage for maritime piracy has been reset. This report suggests a more efficient...

Integration of aboard logistic processes in the design of logistic driven ships during concept exploration: Applied to a Landing Platform Dock design case

The Defence Materiel Organisation found that using a design margin to estimate required space for logistic systems (e.g. staircases, hallways) during the concept exploration design phase is insufficient and impractical. A more educated estimation of required space for logistic systems is hard, because the configuration of systems is varied...

Economic feasibility of a hydrogen-fuelled marine transportation system: Case study of a bulk carrier at CMB

The crises of global warming, air pollution, acid rain and the running out of oil make the investigation into alternative fuel technologies crucial. New technologies are being investigated on a global scale in an attempt to address these problems. This thesis investigates the use of hydrogen-diesel dual-fuel engines and fuel cells. The economic...

2020 IMO Sulphur Regulation: Impacts and Solutions for Fednav Limited

This work is focusing on the 2020 IMO sulphur regulation and its impact on the shipping industry and more particularly Fednav’s activity. The thesis report presents a holistic approach starting with IMO emission regulations including current and future. The thesis is then moving on to Fednav business characteristic followed by the possible...