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Wave Hydrodynamics Juan Carlos Ortiz Royero Ph.D. From: wavcis.csi.lsu

Fields Related to Ocean WaveOcean Engineering: Ship, water borne transport, offshore structures (fixed and floating platforms). Navy: Military activity, amphibious operation,

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Wave Hydrodynamics Juan Carlos Ortiz Royero Ph.D. From: wavcis.csi.lsu

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    7. WAVE CHARACTERISTICS

    8. Wave Pattern Combining Four Regular Waves

    9. Assumptions: The water is of constant depth d The wave motion is two-dimensional The waves are of constant form (do not change with time) The water is incompressible Effect of viscocity, turbulence and surface tension are neglected. The wave height H: H / L ? 1 and H /d ? 1 ( L is the wave length)

    11. Conservation of Mass:

    12. Laplace Equation: Navier- Stokes equation

    14. Dynamic boundary condition at the free surface: In z = ?, p = 0 Kinematic boundary condition at the free surface: In z = ?, there can be no transport of fluid through the free surface (the vertical velocity must equal the vertical of the free surface

    15. Kinematic boundary condition at the bed: In z = - d, there can be no transport of fluid through the free surface (the vertical velocity must equal zero)

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    23. WAVE ENERGY AND POWER

    24. WAVE ENERGY FLUX (Wave Power)

    25. HIGHER ORDER THEORIES Better agreement between theoretical and observed wave behavior. Useful in calculating mass transport. HIGHER ORDER WAVES ARE: More peaked at the crest. Flatter at the trough. Distribution is skewed above SWL.

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