Manoeuvring capability studies
General information
Manoeuvring capability studies are conducted to gain insight in the capabilities and limitations of a required design vessel. Tugs or other aids can be included in the study. Accurate modeling of the design vessel is of great importance on the outcome of the study. Besides the modeling of the design vessel, assisting tugs, the lay-out of the port and the environmental conditions (wind, wave and current) are modeled. The manoeuvres are performed by increasing environmental conditions to establish the limiting environmental conditions (so called operational envelope) for the design vessel. To establish the limiting conditions, the feasibility of the manoeuvre is analyzed based on safety criteria.

Services & Activities
MSCN conducts manoeuvring capability studies focused on complex realistic simulation environments. A manoeuvring capability study can comprise a desk study and simulations. In the desk study the environmental and operational issues are studied to set the determining environment and safety criteria for the manoeuvres and which manoeuvring strategy is most suitable. In the simulations, fast time simulations and/or real time simulations, the operational envelope is determined by performing several manoeuvres in the required environmental settings. The fast time simulations are cost effective, but do not include the human factor in the study. To include the human factor, real time simulations are required. Human factors can be visual factors, communications with tugs, etc.
Prior to real time simulations often fast time simulations are performed to limit the amount of necessary environmental conditions, which saves time and costs. Only the doubtful conditions (autopilot versus human operation) will be performed in the real time simulations. The real time simulations is preferably performed by local pilots and/or captains to include local experience. If tugs play a crucial role in the manoeuvres, it is advised to let tug masters participate in the study.

Other than the port & channel design studies, the emphasis of the manoeuvring capability study lies on the performance of the design vessel.

Facilities & Tools
Manoeuvring capability studies are carried out using:

Software Sales
Some software tools are available for commercial use outside MARIN. A complete overview of these software tools for sale can be found under Sales.

Experience
The list below gives a review of such projects carried out at MARIN:

Most recent papers on manoeuvring capability study presented by MARIN
(A complete overview of papers can be found under Publications)

A Verification and Validation Study of CFD Simulations for the Flow Around A Tug
Vink, B., Schot, J., Vaz, G. and Toxopeus, S.L., 20th Numerical Towing Tank Symposium (NuTTS), Wageningen, The Netherlands, 2017

Modelling of the Plume of a Submerged Exhaust System
Klapwijk, M., Rotte, G., Kerkvliet, M. and Van Terwisga, T., 20th Numerical Towing Tank Symposium (NuTTS), Wageningen, The Netherlands, 2017

Determining Thruster-Hull Interaction for a Drill-Ship Using CFD
Koop, A.H., Cozijn, H.C., Schrijvers, P. and Vaz, G., OMAE ASME 36th International Conference on Ocean, Offshore and Arctic Engineering, Trondheim, Norway, 2017

FLNG ASV - Bridging engineering to operations
Noël Bovens & Gerrit van der Want, MARIN Report, 2017

Current status of manoeuvring prediction methods, their mutual pros and cons and ways to quantify the capabilities
Quadvlieg, F.H.H.A., Yücel Odabaşı Colloquium Series - 2nd International Meeting Recent Advances in Prediction Techniques for Safe Manoeuvring of Ships and Submarines, Istanbul, Turkey, 2016

Most recent articles on manoeuvring capability study written for MARIN Report:
(complete overview of articles can be found under Publications)

A Verification and Validation Study of CFD Simulations for the Flow Around A Tug
Vink, B., Schot, J., Vaz, G. and Toxopeus, S.L., 20th Numerical Towing Tank Symposium (NuTTS), Wageningen, The Netherlands, 2017

Modelling of the Plume of a Submerged Exhaust System
Klapwijk, M., Rotte, G., Kerkvliet, M. and Van Terwisga, T., 20th Numerical Towing Tank Symposium (NuTTS), Wageningen, The Netherlands, 2017

Determining Thruster-Hull Interaction for a Drill-Ship Using CFD
Koop, A.H., Cozijn, H.C., Schrijvers, P. and Vaz, G., OMAE ASME 36th International Conference on Ocean, Offshore and Arctic Engineering, Trondheim, Norway, 2017

FLNG ASV - Bridging engineering to operations
Noël Bovens & Gerrit van der Want, MARIN Report, 2017

Current status of manoeuvring prediction methods, their mutual pros and cons and ways to quantify the capabilities
Quadvlieg, F.H.H.A., Yücel Odabaşı Colloquium Series - 2nd International Meeting Recent Advances in Prediction Techniques for Safe Manoeuvring of Ships and Submarines, Istanbul, Turkey, 2016

Contact
For more information on how MARIN can help your organisation with manoeuvring studies, please contact the MSCN Department.

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