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Behavior of post panamax vessels in the Third Set of Panama locks
Delefortrie, G.; Willems, M.; Vantorre, M.; Laforce, E. (2009). Behavior of post panamax vessels in the Third Set of Panama locks, in: International Conference on Marine Simulation and Ship Manoeuvrability 2009 (MARSIM'09). pp. [1-9]
In: (2009). International Conference on Marine Simulation and Ship Manoeuvrability 2009 (MARSIM'09). International Marine Simulator Forum ( IMSF ): [s.l.]. ISBN 9781622766697. 567 pp., more

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Document type: Conference paper

Keywords
    Density currents; Lateral forces; Locks (Waterways); Scale models; Ship behaviour; Ship models; Tugs; ASW, Panama, Panama Canal [Marine Regions]; Marine

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Abstract
    Flanders Hydraulics Research built a 1/80 scale model in which three different ship models have been experimented to assess the navigation behavior in the Third Set of Panama locks. The radio controlled ship models were laterally restrained, equipped with an own propulsion and longitudinally assisted by simulated tugs. During the tests forces exerted on and vertical motions of the ship, as well as water levels were recorded. A limited number of tests included density currents, which mainly occur between the first lock chamber and the ocean side. All typical lock maneuvers have been tested at different approach wall configurations, eccentricities, propeller rates, approach scenarios and under keel clearances. This article presents a selection of results of interest for lock maneuvers, among which the significant effect of density currents and the approach wall configuration on the lateral forces that act on the entering and exiting vessels. Control of lateral forces by the ship’s controls and tug assistance is therefore a determining parameter.

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