Chapter 12, Problem 3P

An offshore platform is built to withstand ocean wave forces.(a) The annual maximum wave height of the ocean waves (above mean sea level) is a random variable with a Gaussian distribution having a mean height of 4.0 m and a c.o.v. of 0.80. What is the probability that the wave height will exceed 6 m in a given year?(b) If the platform were to be designed for a wave height (above mean sea level) such that it will not be exceeded by ocean waves over a period of 3 years with a probability of 80%, what should be the platform height above the mean sea level? Wave height exceedances between years are statistically independent.

Consider a linear sinusoidal water wave with wave length 140m and 3-m wave height at 30m water depth. (use sea-water density=1025kg/m³)   (a) Find the maximum value of total pressure (hydrostatic + hydrodynamic) that can be measured by a pressure sensor at 6m below the mean water level. (b) Find the amplitude of vertical particle velocity at 6m below the mean water level.

True or False: The energy expended on a 400 km length of open coastline by waves with a height of about 1 m over a given period of time is approximately equal to the energy that is produced by one average-sized nuclear power plan over the same period of time.

Consider a linear sinusoidal water wave with wave length 140m and 3-m wave height at 30m water depth. (use sea-water density=1025kg/m³) (a) Find the amplitude of vertical particle velocity at 6m below the mean water level.

Read the question carefully and Give me right solution according to the question. A reservoir having water to a depth of 30 m undergoes an instantaneous, ideal, dam break Estimate the depth and discharge intensity at the dam site and the water surface profile of the negative wave 5 seconds after the dam break.

Suppose an offshore platform is designed against the 200-yr wave (i.e., a wave height corresponding to a return period of 200yr), but it is only intended to operate for 30 years. What is the probability that it will be subjected to waves exceeding its design value during the 1st year of operation?

10   Which of the following is not an issue with wave and tidal energy? a. Soil erosion b. Noise Pollution c. Corrosion d. Damage to animals

Give me right solution Wave at depth d = 8.2 m, height H = 2.5 m and wave period T = 10 seconds. Deep sea wave height Ho = 2.85. Calculate: Wavelength, Wave velocity, and Wave energy

As depicted in figure below, a vertically uniform but laterally sheared coastal current must climb a bottom escarpment. Assuming that the jet velocity still vanishes offshore, determine the offshore velocity profile and the width of the jet downstream of the escarpment using H1 = 200 m, H2 = 160 m, U1 = 0.5 m/ s, L1 = 10 km, and f = 10 − 4 s − 1 . What would happen if the downstream depth were only 100 m? Explain your workings, equations that have been used, and assumptions that have been used.