Improving the Predictions of Ship Speed and Fuel Consumption for Heavy Lift Vessels

The current ship speed prediction at a given fuel consumption shows large differences with the actual operational values for the Happy Star. This can result in schedule fines, unexpected fuel expenditures and difficulties in bunker schedules. The first goal of this research is to improve these predictions for the expected range of weather...

Floating installation of wind turbine foundations: An engineering assessment on Ship-Monopile Interaction during pile driving

Offshore wind turbines are growing significantly to become a cost-effective alternative for the offshore oil and gas market. This causes rapid growth of offshore wind turbine foundations (monopiles). Currently, monopiles are installed using jack-up vessels like Aeolus. However operations will be limited by crane capacity and its cost...

Examination of high Reynolds number flow around a spinning cylinder with different turbulence models

Higher-Order Effects in Wave Drift Loads: Hull form effects on drift loads acting on FPSOs in extreme environments

Wave drift loads on ships and offshore structures have been a topic of research over the past 50 years, however the linear theory which is used to calculate those has not changed. The aim of this research project is to investigate the effect of bow shape on the second order drift load. A better understanding of the difference between the actual...

The suitability of the Moormaster TM system for inland shipping: Considering quay side mooring in the Amsterdam-Rijnkanaal under the influence of passing ships

The suitability of the MoorMasterTM system by Cavotec MSL in inland shipping is researched. It is an innovative mooring system using vacuum pads with active motion control, utilising a PID controller. A case study of a 110m Large Rhine vessel moored directly beside the Amsterdam-Rijnkanaal (ARK) is performed. In order for the system to be...

Prediction of the performance of ducted propellers with BEM and hybrid RANS-BEM methods

A ducted propeller configuration consists of a fixed annular nozzle surrounding the propeller. The nozzle has an airfoil shape which depends on the required performance of the system as well as the operating conditions. The flow-accelerating ducts provide a positive contribution to the thrust of the propulsor and they are used to increase the...

Hydrodynamic Forces on Wind Assisted Ships using CFD

With the fluctuating fuel oil prices and increasing environmental awareness more and more attention is given to durable ways of shipping cargo around the world. Reducing fuel consumption by using wind as a source of auxiliary propulsion is one way to achieve that goals. Different projects utilising Wind Assisted Ship Propulsion (WASP) have been...

Assessing the dynamic stability of a floating tidal energy platform during ballast operations

A method is developed to assess the dynamic stability of a floating tidal energy platform during ballast operations. This method is applied to a tidal energy platform designed by Bluewater Energy Services B.V., showing the sensitivity of this platform’s dynamic stability during ballast operations to tidal current velocity, changes in lightship...

Predicting scale effects on floating offshore wind turbines

Floating wind turbines are becoming fashionable within the Renewable Energy world. In the last years MARIN has been involved in an increasing number of projects for the offshore wind industry. The complete simulation of a full-scale free-floating wind turbine under waves and winds using viscous-flow (Unsteady-Reynolds-Averaged-Navier-Stokes...

Investigation of inland ship resistance, propulsion and manoeuvring using literature study and potential flow calculations

Manoeuvring simulations can be of good use in determining whether an inland ship may be allowed access to a certain channel/river or not. The SURSIM mathematical model is able to predict the necessary manoeuvres and can therefore be used to determine the acceptance of ships on fairways. However, the SURSIM program is mostly developed for use...