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Modelling propeller and rudder induced forces acting on deep drafted vessels in muddy navigation areas
Delefortrie, G.; Vantorre, M. (2009). Modelling propeller and rudder induced forces acting on deep drafted vessels in muddy navigation areas. J. Mar. Sci. Technol. 14(2): 171-184. dx.doi.org/10.1007/s00773-009-0045-6
In: Journal of Marine Science and Technology. Springer: Tokyo. ISSN 0948-4280, more
Peer reviewed article  

Available in Authors 

Keywords
    Container ships; Fluidization; Manoeuvring; Model tests; Mud; Nautical bottom
Author keywords
    Nautical bottom; Mud; Manoeuvring; Fluidization; Captive model testing; Container

Authors  Top 
  • Delefortrie, G., more
  • Vantorre, M., more

Abstract
    To assess the navigability of deep drafted vessels in muddy navigation areas a mathematical model has been built that takes into account the characteristics of the mud layer. This was achieved with the introduction of a fluidization parameter which determines the corresponding hydrodynamically equivalent depth above a solid bottom. As a result, the under keel clearance dependency of a given mathematical manoeuvring model can be reformulated in such way that the effect of any realistic muddy condition is included. In this article the modelling of the propeller and rudder induced forces and the implementation possibilities of the model will be discussed. It is concluded that the mathematical model, initially formulated for a 6,000 TEU container carrier, provides reliable predictions of the behaviour of larger container carriers and even fuller deep drafted ships.

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