General information
When high demands are placed on the prediction of the speed power of a ship, model tests can be performed in one of MARIN’s facilities. By means of model tests, the design of the hull and propulsor can be qualified in an early stage, and when necessary modifications can be made. Furthermore, after initial tests the hull and appendages can be optimised in order to meet the required specifications and the risk of paying trial penalties can be avoided.
When high demands are placed on the prediction of the speed power of a ship, model tests can be performed in one of MARIN’s facilities. By means of model tests, the design of the hull and propulsor can be qualified in an early stage, and when necessary modifications can be made. Furthermore, after initial tests the hull and appendages can be optimised in order to meet the required specifications and the risk of paying trial penalties can be avoided.
Services & Activities
The Resistance and Propulsion experts have a vast expertise in the field of speed-power predictions for ships. The Deep Water Towing Tank (252 x 10.5 x 5.5 m) is in general used for resistance and propulsion tests in calm water, and over 55.000 model tests have been performed in this facility on more than 9000 ship models.The tested ship models not only concern conventional single and twin screw displacement ships, but also semi-planing and planing craft, ships propelled by pods and/or azimuthing thrusters and waterjet propelled craft. During the test special features can be used like underwater video cameras to observe for example flow separation. In advance of the model tests the ship design can be optimised by means of RAPID and/or PARNASSOS calculations.
The Resistance and Propulsion experts have a vast expertise in the field of speed-power predictions for ships. The Deep Water Towing Tank (252 x 10.5 x 5.5 m) is in general used for resistance and propulsion tests in calm water, and over 55.000 model tests have been performed in this facility on more than 9000 ship models.The tested ship models not only concern conventional single and twin screw displacement ships, but also semi-planing and planing craft, ships propelled by pods and/or azimuthing thrusters and waterjet propelled craft. During the test special features can be used like underwater video cameras to observe for example flow separation. In advance of the model tests the ship design can be optimised by means of RAPID and/or PARNASSOS calculations.
Facilities & Tools
The following MARIN facilities are used to predict the speed power performance
The following MARIN facilities are used to predict the speed power performance
- Deep Water Tank: resistance and propulsion tests
- High speed basin: resistance and propulsion test for fast planning vessels
- Shallow water basin: resistance and propulsion tests in shallow water
The following programs are used to improve the speed power performance:
RAPID: Calculation of wave resistance and potential flow
PARNASSOS: Calculation of the viscous flow around ships hulls
DESP: Prediction of propulsive performance
PARNASSOS: Calculation of the viscous flow around ships hulls
DESP: Prediction of propulsive performance
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 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 Software Sales.
Experience
MARIN has provided these services for many different clients and ship types. The list below gives a review of ship types:
MARIN has provided these services for many different clients and ship types. The list below gives a review of ship types:
- Container vessels
- Cruise liners
- Ferries
- Luxury motor and sailing yachts
- Hopper dredgers
- Working vessels
- Naval vessels including submarines
Most recent speed/power performance related papers presented by MARIN
(complete overview of papers can be found under Publications)
(complete overview of papers can be found under Publications)
Reduction of frictional resistance by air bubble lubrication
Foeth, E.J., Eggers, R., Hout, I. van der and Quadvlieg, F.H.H.A., SNAME Annual Meeting, Providence, 2009
Extending the benefit of CFD tools in ship design and performance prediction
Raven, H.C., Ploeg, A.P. van der and Eça, L., ICHD 7th International Conference on Hydrodynamics, 2006
Offshore Monitoring; Real World Data for Design, Engineering and Operation
van den Boom, H., Koning, J. & Aalberts, P., Offshore Technology Conference (OTC), Houston, 2005
Design for service in ferry-design
Dallinga, R.P., Loeff, G.B. and Thill, C., HPMV 3rd International Conference on High Performance Marine Vessels, 2003
Advances in full-scale wake-field predictions and the implications for the propeller design
Zondervan G.J.D. and Starke A.R. , IMAM 10th International Congress of the International Maritime Association of the Mediterranean, Crete, Greece, 2002
Foeth, E.J., Eggers, R., Hout, I. van der and Quadvlieg, F.H.H.A., SNAME Annual Meeting, Providence, 2009
Extending the benefit of CFD tools in ship design and performance prediction
Raven, H.C., Ploeg, A.P. van der and Eça, L., ICHD 7th International Conference on Hydrodynamics, 2006
Offshore Monitoring; Real World Data for Design, Engineering and Operation
van den Boom, H., Koning, J. & Aalberts, P., Offshore Technology Conference (OTC), Houston, 2005
Design for service in ferry-design
Dallinga, R.P., Loeff, G.B. and Thill, C., HPMV 3rd International Conference on High Performance Marine Vessels, 2003
Advances in full-scale wake-field predictions and the implications for the propeller design
Zondervan G.J.D. and Starke A.R. , IMAM 10th International Congress of the International Maritime Association of the Mediterranean, Crete, Greece, 2002
Most recent speed/power performance related articles written for MARIN Report
(complete overview of articles can be found under Publications)
(complete overview of articles can be found under Publications)
MARIN set to open its new Depressurised Wave Basin
MARIN Report, 2011
MARIN spearheads propulsion improvements
Gert-Jan Zondervan & Jie Dang, MARIN Report, 2011
Reliable speed assessment more relevant than ever
Henk van den Boom, MARIN Report, 2011
Correlation of speed-power predictions by model tests
Michiel Verhulst, MARIN Report, 2010
Measuring success
MARIN Report, 2009
MARIN Report, 2011
MARIN spearheads propulsion improvements
Gert-Jan Zondervan & Jie Dang, MARIN Report, 2011
Reliable speed assessment more relevant than ever
Henk van den Boom, MARIN Report, 2011
Correlation of speed-power predictions by model tests
Michiel Verhulst, MARIN Report, 2010
Measuring success
MARIN Report, 2009
Contact
For more information on how MARIN can help your organisation with the issue of speed power predictions, please contact the Resistance and Propulsion Knowledge Team at: powering@marin.nl