Hydrodynamics of High-Speed Marine Vehicles
Cambridge University Press, 2005 - 454 pagine
Hydrodynamics of High-Speed Marine Vehicles, first published in 2006, discusses the three main categories of high-speed marine vehicles - vessels supported by submerged hulls, air cushions or foils. The wave environment, resistance, propulsion, seakeeping, sea loads and manoeuvring are extensively covered based on rational and simplified methods. Links to automatic control and structural mechanics are emphasized. A detailed description of waterjet propulsion is given and the effect of water depth on wash, resistance, sinkage and trim is discussed. Chapter topics include resistance and wash; slamming; air cushion-supported vessels, including a detailed discussion of wave-excited resonant oscillations in air cushion; and hydrofoil vessels. The book contains numerous illustrations, examples and exercises.
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RESISTANCE AND PROPULSION
WAVE RESISTANCE AND WASH
SURFACE EFFECT SHIPS
HYDROFOIL VESSELS AND FOIL THEORY
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added mass air cushion analysis angle of attack approximation assumed beam Bernoulli's equation body boundary layer calculated calm water catamaran causes cavitation coefficient component consider coordinate system cross section deadrise angle demihulls dynamic effect equation expressed Faltinsen flow separation forward speed free-surface condition frequency Froude number function given by eq gives heave and pitch high-speed vessels hydrodynamic hydrofoil hydrofoil vessel hydrostatic impact incident flow incident waves infinite fluid lift coefficient lift force loads longitudinal maneuvering maximum mean free surface metacentric height monohull nondimensional nonlinear oscillations pitch moment potential flow presented in Figure pressure propeller propulsion ratio Reynolds number rudder ship length shown in Figure shows side hulls slamming solution spray steady strut submerged tion transom stern transverse waves trim angle turbulent velocity potential viscous water depth water entry waterjet wave amplitude wave elevation wave resistance wavelength wetdeck wetted zero
Pagina 441 - Pressure Fluctuations on the Hull Induced by Cavitating Propellers", Norwegian Ship Model Experiment Tank Publ.