Search ...
Results
Subscribe
Step-by-Step Solutions
University Majors
Support Hub
Legal & Support Articles
Contact Us
Login
Share
Search ...
Results
Subscribe
Step-by-Step Solutions
University Majors
Support Hub
Legal & Support Articles
Contact Us
Login
Share
Coastal Engineering Processes, Theory and Design Practice
37 SOLVED PROBLEMS
Question: 4.1
Calculate the tide-generating force on the Earth due to the Earth-Moon and Earth-Sun systems, given that the mass of the Earth, (m), is = 5.98 × 10^24 kg, the mass of the moon, (M), = 7.35 × 10^22 kg, the major semi-axis of the lunar orbit around the Earth, (r), is 3.84 × 10^8 m, and the mean radius ...
Verified Answer:
We may estimate the magnitude of the effect of the...
Question: 3.2
Complete Table Q1 by determining the values of the spectral energy density (S(f)) at frequencies f = 0.088 Hz and f = 0.113 Hz from the following data: wind speed U10 = 20 m/s, fetch length F = 220 km. ...
Verified Answer:
Use the JONSWAP formula with
U_{10}
...
Question: 7.6
For a particular structure, the allowable overtopping threshold Q0 is normally distributed with mean 10 and standard deviation 4 l/s/m-run, and the overtopping discharge under design storm conditions is normally distributed with mean 3 and standard deviation 3 l/s/m−run. Calculate the reliability ...
Verified Answer:
For a linear reliability function G the probabilit...
Question: 5.2
SUSPENDED SEDIMENT TRANSPORT IN A TIDAL CURRENT Calculate the total suspended sediment transport rate in a tidal current given the following data: Depth mean current u = 2.0 m/s, grain size D50 = 0.4 mm, water depth h = 10 m, sea water density ρ = 1027 kg/m³ (@ 10° C and salt content 35 ppt) ...
Verified Answer:
The first stage of the solution is to determine th...
Question: 4.2
The tidal constituents for four harbours are given in the following table. Classify the tidal regime at each harbour using the tidal ratio. Estimate the maximum tide level at each harbour. Calculate the length of the spring-neap cycle at harbours A and D. The mean water level relative to the local ...
Verified Answer:
We calculate F from the amplitudes of the constitu...
Question: 4.6
Derive a suitable approximation for the Coriolis parameter for regional scale motions centred on a latitude of θ0. ...
Verified Answer:
We expand the Coriolis parameter in a Taylor serie...
Question: 4.4
This example illustrates how information on spring and neap tidal information can be related to tidal constituents to derive further information to assist in a practical problem of safely docking a ship in harbour. A port is located in an estuary, upstream of a bridge whose deck base is at +20 m CD ...
Verified Answer:
a. From the tidal range information we can determi...
Question: 4.5
Given the following information for observed ocean tide levels (semidiurnal) at an established gauge and a new survey site, calculate the sounding datum for the new site. ...
Verified Answer:
Following the steps outlined in the section above:...
Question: 4.8
Find the periods of free oscillations in the following cases: 1. A long narrow lake of uniform depth 15 m and length 5 km. 2. An open-ended channel of depth 20 m and length 10 km. ...
Verified Answer:
In the first case we may use the 1-dimensional ver...
Question: 4.9
Nonlocal forcing results in an oscillation of frequency ω0 whose amplitude at the mouth of a channel is Q. If the channel is of constant depth H and of length A, determine a general expression for the amplitude of the oscillation at the head of the channel. Calculate specific values for the case ...
Verified Answer:
The governing equation is
\frac{\partial²\e...
Loading...
Load More Questions