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Prediction of the forces acting on container carriers in muddy navigation areas using a fluidization parameter Delefortrie, G.; Vantorre, M. (2009). Prediction of the forces acting on container carriers in muddy navigation areas using a fluidization parameter. J. Mar. Sci. Technol. 14(1): 51-68. https://dx.doi.org/10.1007/s00773-009-0041-x In: Journal of Marine Science and Technology. Springer: Tokyo. ISSN 0948-4280; e-ISSN 1437-8213

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 280302 [ download pdf ] Waterbouwkundig Laboratorium: Non-open access 152230 [ aanvragen ] Waterbouwkundig Laboratorium: Overdrukjes 153601 [ aanvragen ]

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Trefwoorden

Forces Harbours and waterways > Manoeuvring behaviour > Nautical bottom Numerical calculations Parameters Phase changes > Fluidization Prediction Sediments > Clastics > Mud Vehicles > Surface craft > Ships > Merchant ships > Container ships

Author keywords

Nautical bottom; Mud; Manoeuvring; Container; Fluidization; Captive model testing

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Auteurs		Top
Delefortrie, G. Vantorre, M.

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Abstract

To assess the safety of navigation in muddy areas, a comprehensive captive manoeuvring model test program was executed. Based on the results of this experimental program, a four-quadrant manoeuvring model was built with a separate set of coefficients for each combination of under-keel clearance and mud layer characteristics. The disadvantage of this model is that only conditions corresponding with the experimental ones can be simulated. A more consolidated mathematical model was needed. This was achieved with the introduction of a fluidization parameter that 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 hull forces, the propeller thrust and torque, and the forces acting on the rudder will be discussed.

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