Coastal Engineering and Modelling - Wave Modelling and Coastal Structure - Engineering Assignment Help

Assignment Task:

A coastal engineering firm, ABC Coastal Solution, has bid the project to design an impermeable rock groyne structure at the coast of an offshore island. The construction site is identified in Figure 1, where there is no historical wave monitoring data. However, the bathymetry data and the historical wind data in the area are available. The 50-year Average Return Interval (ARI) design wind in the research domain is listed in Table 1.

Accurate prediction of design waves are essential when determining design data for coastal structures. The safety of structures, as well as the possibility of developing an economic design, relies above all on the reliability and accuracy of the underlying design data. The objectives of this project are:
1. Apply DHI MIKE 21 SW model to predict the design wave conditions using the provided design wind conditions.
2. The impermeable rock groyne structure has a slope of 1 in 2.5 and is subjected to a design wave condition (H10%) estimated by the MIKE 21 SW model. Using the Hudson formula, estimate the weight of uniform-sized, rough angular armour stone (?s = 2650kg/m3) required for the trunk and the head of the structure.

Data Information
• The bathymetry data is in the pre-generated file of “Island_Bathymetry.dfs2”.
• The domain has Northern, Southern and Eastern open boundaries. “Lateral boundary” applies to all of them. The Western boundary is bound by the island and is defined as a “closed boundary”. The coastal structure toes is at (Easting 2500, Northing 2000) with a water depth of 10.2 m.
• A MIKE 21 SW model has been developed, calibrated and verified. The following model parameters need to be applied:

• Time: No of time steps 100, Time step interval: 1800 s
• Basic equations: Fully spectral formulation and Instationary formulation
• Spectral discretization: 25 frequencies and 16 directions
•  No water level and current variations
•  Diffraction – no diffraction
•  Energy transfer - Include quadruplet wave interaction
•  Wave breaking – Specified gamma, constant, value = 0.8
•  Bottom friction - D50 sand size is 0.0002 m
• White capping – no white capping
•  Structure – no structure
•  Initial condition - default JONSWAP fetch growth expression

You should work individually and complete the requested tasks:
1. Establish a spectral wave model using the provided calibrated model parameters detailed above.

2. Complete simulations with the design wind conditions and generate required wave output parameters.

3. Analyse the wave data including 
(i) the developed significant wave height, peak wave direction and peak wave period distributions for the whole domain 
(ii) the wave characteristics (wave height, wave period, wave direction) at the construction site 
(iii) the developed wave spectral parameter (Direction-Frequency) at the construction site.

4. Determine the critical design wave (compare the 4 cases) and present critical wave characteristic figures as analysed in 3.

5. Complete the design using the model predicted design conditions and given structure conditions.
6. Complete a report to your client detailed your modelling and design.

The report must include:
• Introduction and background: Introduce the project and explain your model and design formula briefly and give the key model parameters applied.
• Results: Display the simulation results in a clear and appropriate manner, i.e. all figure axes and table columns must be properly labelled with the correct units, captions and brief explanation are required for all figures.
• Discussion and conclusion: A brief analysis that summarises the data and draws some conclusions.

This Engineering Assignment has been solved by our Engineering Experts at My Uni Paper. Our Assignment Writing Experts are efficient to provide a fresh solution to this question. We are serving more than 10000+ Students in Australia, UK & US by helping them to score HD in their academics. Our Experts are well trained to follow all marking rubrics & referencing style.

Be it a used or new solution, the quality of the work submitted by our assignment experts remains unhampered. You may continue to expect the same or even better quality with the used and new assignment solution files respectively. There’s one thing to be noticed that you could choose one between the two and acquire an HD either way. You could choose a new assignment solution file to get yourself an exclusive, plagiarism (with free Turnitin file), expert quality assignment or order an old solution file that was considered worthy of the highest distinction.