General information
Bulk Carriers are developed for a wide range of main particulars and capacity. Some bulk Carriers are smaller than 100 m but also large vessels with a capacity of 300,000m3 or more are under development. The design of today’s bulk carriers is generally characterised by a single screw type of vessel with a rather high block coefficient. For this type of vessel, special attention has to be paid to the design of the fore body (bulbous bow), resulting in good wave pattern, a low overall resistance and related good powering performance. Furthermore, an excellent afterbody design, with a good flow towards the propeller(s) and rudder(s), without flow separation is an important issue.
Large differences between design (loaded) draught and ballast draught have to be taken into account. The combination of single screw type of ship, high propeller loading, and rather pronounced wake field requires carefully checking of the risk for cavitation erosion and vibrations.
Various interesting propulsion plants are possible for oil tankers. Recent research at MARIN included the traditional single screw, podded propulsors and hybrid propulsors.
Bulk Carriers are developed for a wide range of main particulars and capacity. Some bulk Carriers are smaller than 100 m but also large vessels with a capacity of 300,000m3 or more are under development. The design of today’s bulk carriers is generally characterised by a single screw type of vessel with a rather high block coefficient. For this type of vessel, special attention has to be paid to the design of the fore body (bulbous bow), resulting in good wave pattern, a low overall resistance and related good powering performance. Furthermore, an excellent afterbody design, with a good flow towards the propeller(s) and rudder(s), without flow separation is an important issue.
Large differences between design (loaded) draught and ballast draught have to be taken into account. The combination of single screw type of ship, high propeller loading, and rather pronounced wake field requires carefully checking of the risk for cavitation erosion and vibrations.
Various interesting propulsion plants are possible for oil tankers. Recent research at MARIN included the traditional single screw, podded propulsors and hybrid propulsors.
Services & Activities
MARIN is involved in the development of the hull design, the power optimisation and the cavitation, noise erosion observation.
The seakeeping performance in all weathers and all sea states is analysed by our numerical tools and MARINs unique Seakeeping and Manoeuving basin (SMB). Here we also analyse the the low and high speed manoeuvrability and controllability.
The Trials & Monitoring Department is involved in full-scale measurements of ship performances, cavitation observation, pulse and loads measurements.
MARIN is involved in the development of the hull design, the power optimisation and the cavitation, noise erosion observation.
The seakeeping performance in all weathers and all sea states is analysed by our numerical tools and MARINs unique Seakeeping and Manoeuving basin (SMB). Here we also analyse the the low and high speed manoeuvrability and controllability.
The Trials & Monitoring Department is involved in full-scale measurements of ship performances, cavitation observation, pulse and loads measurements.
Facilities & Tools
Bulk carriers are tested in the following MARIN facilities:
Bulk carriers are tested in the following MARIN facilities:
- Deep Water Towing Tank
- Depressurised Towing Tank
- Seakeeping and Manoeuvring Basin
Bulk carrier hull form design optimisation is performed with the aid of the following tools:
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
Bulk carrier behaviour is simulated with the following tools:
SURSIM: Calculation of ship manoeuvres
FREDYN: Seakeeping and Manoeuvring behaviour of ships in wind and waves
SHIPMO: Motions and seakeeping of ships
FREDYN: Seakeeping and Manoeuvring behaviour of ships in wind and waves
SHIPMO: Motions and seakeeping of ships
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
The list below gives a small overview of companies for which bulk carrier model and full scale tests were carried out at MARIN:
Commercial projects on behalf of:
Joint Industry Projects:
The list below gives a small overview of companies for which bulk carrier model and full scale tests were carried out at MARIN:
Commercial projects on behalf of:
Joint Industry Projects:
Most recent bulk carrier papers presented by MARIN
(complete overview of papers can be found under Publications)
(complete overview of papers can be found under Publications)
Full scale wave and whipping induced hull girder loads
Aalberts P.J. and Nieuwenhuijs M.W., Hydroelasticity in Marine Technology, Wuxi, China, 2006
Two examples of hull-form optimization using viscous-flow computations
Starke, A.R. and Windt, J., Computational Fluid Dynamics Technology in Ship Hydrodynamics, London, UK, 2003
Revision of the Intenational Convention on Load Lines
Kat J.O. de, Proceedings Glasgow Marine Fair and Workshop on Safety of Bulk Carriers, Glasgow, May 2001, 2001
MARIN model tests: Green Seas Hatch Loading on Bulk Carriers
Gaillarde G.and Zheng X., RINA Post Derbyshire, London, 2001
Hatch cover loads experienced by M.V. Derbyshire during typhoon 'Orchid'
Dallinga R.P. and Gaillarde G., SOBC, Glasgow Safety of bulk carriers, 2001
Aalberts P.J. and Nieuwenhuijs M.W., Hydroelasticity in Marine Technology, Wuxi, China, 2006
Two examples of hull-form optimization using viscous-flow computations
Starke, A.R. and Windt, J., Computational Fluid Dynamics Technology in Ship Hydrodynamics, London, UK, 2003
Revision of the Intenational Convention on Load Lines
Kat J.O. de, Proceedings Glasgow Marine Fair and Workshop on Safety of Bulk Carriers, Glasgow, May 2001, 2001
MARIN model tests: Green Seas Hatch Loading on Bulk Carriers
Gaillarde G.and Zheng X., RINA Post Derbyshire, London, 2001
Hatch cover loads experienced by M.V. Derbyshire during typhoon 'Orchid'
Dallinga R.P. and Gaillarde G., SOBC, Glasgow Safety of bulk carriers, 2001
Most recent bulk carrier articles written for MARIN Report
(complete overview of articles can be found under Publications)
(complete overview of articles can be found under Publications)
Pulling together in ROPES JIP
Henk van den Boom, MARIN Report, 2010
New JIP brings sea trials up to speed
Henk van den Boom, MARIN Report, 2005
Concern rises with Dongedijk re-investigated
Geert Kapsenberg, MARIN Report, 2003
SMB plays vital role in bulk carrier safety probe
Guilhem Gaillarde, MARIN Report, 2000
Henk van den Boom, MARIN Report, 2010
New JIP brings sea trials up to speed
Henk van den Boom, MARIN Report, 2005
Concern rises with Dongedijk re-investigated
Geert Kapsenberg, MARIN Report, 2003
SMB plays vital role in bulk carrier safety probe
Guilhem Gaillarde, MARIN Report, 2000
Contact
For more information on how MARIN can help your organisation with bulk carriers, please contact Merchant Vessel & Work Boat team at MerchantVessel@marin.nl
For more information on how MARIN can help your organisation with bulk carriers, please contact Merchant Vessel & Work Boat team at MerchantVessel@marin.nl