General information
In addition to the design and development of optimised hull forms, MARIN is assisting the owner of the yard with the design of the appendages. Special attention has to be given to the optimum shape and the best alignment with regard to the direction of the flow.
In addition to the design and development of optimised hull forms, MARIN is assisting the owner of the yard with the design of the appendages. Special attention has to be given to the optimum shape and the best alignment with regard to the direction of the flow.
Services & Activities
The Ships Department has a lot of expertise in the field of appendage design. For the design of a rudder, first the manoeuvrability of the ship has to be investigated. Additionally, the resistance and the cavitating characteristics of the selected rudder are checked by means of model experiments.
The optimum alignment of the bow thruster tunnels and the need for scallops can be determined by means of paint tests.
For twin screw vessels with a conventional shafting arrangement, the struts are aligned with regard to the flow angle by means of paint tests (plates on the struts) and for the high speed vessels by means of a 5-hole Pitot tube measurement at the plane of the struts.
The Ships Department has a lot of expertise in the field of appendage design. For the design of a rudder, first the manoeuvrability of the ship has to be investigated. Additionally, the resistance and the cavitating characteristics of the selected rudder are checked by means of model experiments.
The optimum alignment of the bow thruster tunnels and the need for scallops can be determined by means of paint tests.
For twin screw vessels with a conventional shafting arrangement, the struts are aligned with regard to the flow angle by means of paint tests (plates on the struts) and for the high speed vessels by means of a 5-hole Pitot tube measurement at the plane of the struts.
Facilities & Tools
Model experiments to optimise the design of the appendages are carried out in the following MARIN facilities:
Model experiments to optimise the design of the appendages are carried out in the following MARIN facilities:
- Deep water towing tank
- Depressurised towing tank
- Seakeeping and manoeuvring basin
The following tools are used to study appendage design issues: (SURSIM and SHIPMO for MARIN internal use only)
RAPID: Calculation of wave resistance and potential flow
PARNASSOS: Calculation of the viscous flow around ships hulls
SURSIM: Calculation of ship manoeuvres
SHIPMO: Motions and seakeeping of ships
PARNASSOS: Calculation of the viscous flow around ships hulls
SURSIM: Calculation of ship manoeuvres
SHIPMO: Motions and seakeeping of ships
Experience
The list below gives a review of ship types where MARIN has a large experience in the field of appendage design:
The list below gives a review of ship types where MARIN has a large experience in the field of appendage design:
- Motor yachts with a lenght varying from 8 to over 150m, and different propulsion type's
- High speed ferry's and cruise liners, including twisted struts
- Cargo vessels with a lenght varying from 80 to over 300m
Most recent appendage design related papers presented by MARIN
(complete overview of papers can be found under Publications)
(complete overview of papers can be found under Publications)
Challenges for PIV in towing facilities
Hallmann, R., Tukker, J. and Verhulst, M.A., AMT 1st International Conference on Advanced Model Measurement Technology for the EU Maritime Industry, 2009
Static and dynamic effects of rudder - hull - propeller interaction on fast monohulls
Jurgens, A.J., FAST 2005 The 8th International Conference on Fast Sea Transportation, 2005
Hydrodynamic aspects of interest for the development of an integrated ride control system for high speed mono hulls
Jurgens, A.J. and Walree, F. van, FAST 2003 The 7th International Conference on Fast Sea Transportation, 2003
Towards accurate wake predictions of twin-screw ships with an open-shaft stern configuration
Windt, J., NUTTS 2003 symposium, Rome, 2003
R&D on an advanced ride control system for a high speed mono hull
Jurgens, A.J., Walree, F. van, Rijsbergen, M.X. van and Klugt, P.G.M. van der, HIPER'02 3rd International EuroConference on High-Performance Marine Vehicles, 2002
Hallmann, R., Tukker, J. and Verhulst, M.A., AMT 1st International Conference on Advanced Model Measurement Technology for the EU Maritime Industry, 2009
Static and dynamic effects of rudder - hull - propeller interaction on fast monohulls
Jurgens, A.J., FAST 2005 The 8th International Conference on Fast Sea Transportation, 2005
Hydrodynamic aspects of interest for the development of an integrated ride control system for high speed mono hulls
Jurgens, A.J. and Walree, F. van, FAST 2003 The 7th International Conference on Fast Sea Transportation, 2003
Towards accurate wake predictions of twin-screw ships with an open-shaft stern configuration
Windt, J., NUTTS 2003 symposium, Rome, 2003
R&D on an advanced ride control system for a high speed mono hull
Jurgens, A.J., Walree, F. van, Rijsbergen, M.X. van and Klugt, P.G.M. van der, HIPER'02 3rd International EuroConference on High-Performance Marine Vehicles, 2002
Most recent appendage design papers written for MARIN Report:
(complete overview of articles can be found under Publications)
(complete overview of articles can be found under Publications)
MARIN spearheads propulsion improvements
Gert-Jan Zondervan & Jie Dang, MARIN Report, 2011
CFD versus PIV
Christian Veldhuis, MARIN Report, 2010
Measuring success
MARIN Report, 2009
Oasis of the Seas
Giedo Loeff, Jaap van Heerd & Reint Dallinga, MARIN report, 2009
New stereo-PIV system proves a valuable tool for flow measurements Report gives an overview of stereoscopic-PIV
Michiel Verhulst, Serge Toxopeus & Rink Hallmann, MARIN report, 2009
Gert-Jan Zondervan & Jie Dang, MARIN Report, 2011
CFD versus PIV
Christian Veldhuis, MARIN Report, 2010
Measuring success
MARIN Report, 2009
Oasis of the Seas
Giedo Loeff, Jaap van Heerd & Reint Dallinga, MARIN report, 2009
New stereo-PIV system proves a valuable tool for flow measurements Report gives an overview of stereoscopic-PIV
Michiel Verhulst, Serge Toxopeus & Rink Hallmann, MARIN report, 2009
Contact
For more information on how MARIN can help your organisation with the issue of appendage design, please contact:
The knowledge group Resistance and Propulsion at powering@marin.nl
For more information on how MARIN can help your organisation with the issue of appendage design, please contact:
The knowledge group Resistance and Propulsion at powering@marin.nl