Hydrodynamics of high-speed vessels supported by submerged hulls, hydrofoils, air cushion or a combination of these effects are considered. Special physical features of high-speed vessels are emphasized. Examples are the cobblestone oscillations of an SES (surface effect ship) in small sea states and vessel-generated waves (wash). The increasing importance of a broad spectrum of dynamic stability phenomena with increasing speed is emphasized. The risk of cavitation and ventilation is pointed out. The very different physical behaviour in wind-generated waves of the different types of high-speed vessels is discussed. The wave-induced response analysis of submerged hull supported vessels is strongly influenced by the interaction between the unsteady and local steady flow at high speed. The importance of nonlinear free surface effects in particular for planing vessels is illustrated. Both local and global slamming effects are discussed from a structural point of view. Hydroelasticity matters in a local slamming analysis when the angle between the impacting free surface and the hull surface is small. The manoeuvering analysis must consider six degrees of freedom at high speed. The influence of Froude number and viscous flow parameters on the hydrodynamic manoeuvering coefficients are also discussed.
Hydrodynamic features of high-speed vessels
Ships and Offshore Structures ; 1 , 1 ; 13-23
2006-01-01
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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