TLP is tendon-restrained, Semi is column-stabilized, Spar has deep draft for low heave, FPSO/FLNG are ship-shaped storage and production units

swells travel long distances and often dominates design loads

Tiny ripples act as starting point for wave growth. Shows importance of microscale processes.

Early attempt to explain ripples, but limited since it ignored turbulence. Shows how theories evolve

Represents the transport speed of wave energy

Shows energy conservation in wave motion, but linearization removes nonlinear terms. Useful in practice, but limited for steep or breaking waves

cannot capture viscous or rotational effects present in real seas

allows potential flow theory to be applied

Valid for surface gravity waves since water density changes are negligible

This simplifies equations by neglecting viscosity, making analysis easier, ignores turbulence and boundary friction which is important in coastal engineering

shouldn't it be 627.84 J/m2

fdmax is given per unit length, so we multiply by the length of each segment i.e 3m

non oscillating motion

Morrison equation applicable area

Viscous effects not important below this point

I Think we can multiply both side by d and set x=kd This gives x*tanh(x) = constant , which is easier to solve iteratively . once x is found, k can be calculated since d is given

( got k as 0.112 and wavelength as 56.071 using this — might not be highly accurate. )

It means the speed of wave depends on wavelength / frequency

If the term is (𝑘𝑥 − 𝜔𝑡), then as time increases x must also increase to keep the phase constant , meaning the wave moves forward in the +x direction

If the term is (𝑘𝑥 + 𝜔𝑡), then as time increase x must decrease to keep the phase constant , meaning the wave moves backward in the -x direction

calculated solving 1/fv

Strouhal number usually taken the value of 0.2 as it is nearly constant for a wide range Re

stiffness

animation helped understand the process better

vortex shed at trough and crest , 2 time more for drag

The animation on this slide was really engaging and helped in understanding the concept better

It would have been more interesting if the house dimensions were different (not just a cube) and if the wind direction relative to the house was specified. This would allow for more realistic calculation of projected area and wind load effects at various angles.