Powering performance
speed/power
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.

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.

Facilities & Tools
The following MARIN facilities are used to predict the speed power performance

The following programs are used to improve the speed power 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.

Experience
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)

RANS-based full-scale power predictions for a general cargo vessel, and comparison with sea-trial results
Starke, A.R., Drakopoulos, K., Toxopeus, S.L. and Turnock, S.R., VII International Conference on Computational Methods in Marine Engineering (MARINE2017), Nantes, France, 2017

Ship Speed-Power Performance Assessment
van den Boom, H.J.J. and Hasselaar, T.W.F., SNAME Annual Meeting, Houston, TX, 2014

Full Scale Measurements of Passing Ship Effects
Wictor, W., Boom, H. van den., 33rd PIANC World Congress, San Francisco, 2014

ROPES - Joint Industry Project on Effect of Passing Ships on Moored Vessels
Boom, H. van den, Pluijm, M., Pauw, W., 33rd PIANC World Congress, San Francisco, 2014

Comparisons of Means for Estimating Sea States from an Advancing Large Container Ship
Nielsen, U., Andersen, M., Koning, J., PRADS, 2013

Most recent speed/power performance related articles written for MARIN Report
(complete overview of articles can be found under Publications)

Stereo Particle Image Velocimetry proves important tool in a wide range of test campaigns
Rink Hallmann, MARIN Report, 2017

New C-DRONE - for undisturbed wave spectrum measurements
Thijs Hasselaar, MARIN Report, 2017

CoVadem: big data for smarter inland shipping
Meeuwis van Wirdum & Arno Bons, MARIN Report, 2017

MARINnovatief 2017 results in seven new exploratory projects
Timo Verwoest, MARIN Report, 2017

From fresh Breathe to hot Savannah
Enrico Della Valentina, MARIN Report, 2015


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

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