# Coastal Engineering

## Course Description:

This course aims to provide students with specialized knowledge on mechanisms of coastal sediment transport, morphological feedbacks to the structures and coastal erosion. It also aims at learning the design and spatialisation of coastal protection projects using relatively simple mathematical expressions and advanced mathematical models

### Prerequisite Knowledge

It is recommended that students have the basic knowledge of Maritime Hydraulics.

### Course Units

# Title Description Hours
1 Introduction Introduction to Coastal Engineering. Coastal Engineering and its field. 3
2 Wave Mechanics Elements Waves in coastal area (shoaling, refraction, diffraction, breaking, run-up). Coastal circulation, currents (tidal, wind-, wave, density) and mathematical coastal circulation models. Radiation stress theory. 6
3 Marine sediments and Sediment Movement Sediments Sediment movement, sampling, statistical parameters. Drilling stress at the bottom. Bottom roughness. Friction coefficient. Start of movement. Placement in sediment suspension. Transfer of sediment to the coastal zone. Neutral line. Sediment motion monitoring techniques. 9
4 Coastal sediment transport and sediment balance Sediment transport vertically and along the coast. Calculation of sediment supply. CERC methods, et al. Sediment accumulations in the coastal zone. Natural accumulations. Effects of coastal barriers and projects. Mathematical study of coastline development. 9
5 Coastal protection projects Introduction to coastal protection projects. Types of coastal structures. Structures along the coastline. Structures perpendicular to the shoreline. Coast replenishment. Basic operation and construction parameters. 12

### Learning Objectives

Upon successful completion of the course, students will be able to:

1. Understand the basic principles of coastal sediment transport and morphological feedbacks from technical works through equations and simple numerical models

2. Understand the mechanisms of erosion and sedimentation in the coastal zone

3. Solve basic components of coastal engineering problems by understanding the processes of wave propagation in coastal areas and the interaction of waves with coastal structures

4. Design of coastal protection structures using empirical relationships and mathematical models

### Teaching Methods

 Teaching methods Lectures in class. Solving of simple examples and problems in the class. Discussion of case studies. Presentations in the Table. PowerPoint Slides. Calculations on PC via Excel and computational codes. Students solve complex simulations of coastal processes using PC at home and at the Laboratory of Harbour Works. YES Students complete projects during the semester with the continuous supervision of the teachers six-month work in groups of 3-4 people. For each topic they write a Technical Report, which is corrected by the teachers and returned. Educational Excursion. There is an option of developing individual voluntary bibliographic work.

### Student Assessment

• Final written exam: 65%
• Assignments (projects, reports): 25%
• Oral exam: 10%

### Textbooks - Bibliography

1. Dean RG & Dalrymple RA (1984). “Water Wave Mechanics for Engineers and Scientists”, Prentice-Hall Inc., Englewood Cliffs, New Jersey, USA; [also: 2nd Edition (1991) in Advanced Series on Ocean Engineering, Vol. 2, Ed. P LF Liu, WorldScientificPress.]
2. Dean, R.C. (1983). Principles of Beach Nourishment. Handbook of Co. Processes and Erosion. P. Komar (ed.). CRC Press. -Dean, R.G., Dalrymple, R.A. (2004). Coastal Processes with Engineering Applications. ISBN 0-511-03791-0 eBook, Cambridge University Press. -
3. Fredsoe J &Deigaard R (1992). “Mechanics of Coastal Sediment Transport”, Advanced Series on Ocean Engineering, Vol. 3, Ed. P LF Liu, WorldScientificPress.
4. Kamphuis, J.W. (2000). Introduction to Coastal Engineering and Management, Advanced Series on Ocean Engineering: Volume 16, World Scientific Publishing Co
5. Mei CC (1989). “The applied dynamics of ocean surface waves”, Advanced Series on Ocean Engineering, Vol. 1, Ed. P LF Liu, WorldScientificPress.
6. Mei CC, Stiassnie M, Yue D KP (2005). “Theory and applications of ocean surface waves”, Advanced Series on Ocean Engineering, Vol. 23, Ed. P LF Liu, WorldScientificPress.
7. Nielsen P (1992). “Coastal Bottom Boundary Layers and Sediment Transport”, Advanced Series on Ocean Engineering, Vol. 4, Ed. P LF Liu, WorldScientificPress.
8. Pope, J. and Dean, J.L. (1986). Development of design criteria for segmented breakwaters. 20th ICCE, Taipei, Taiwan.
9. Reeve, D., Chadwick, A.and Fleming, Ch. (2004). Coastal Engineering, Processes, theory and design practice. SponPress, ISBN 0-203-64735-1 Master e-book ISBN.
10. Svendsen IA (2006). “Introduction to nearshore hydrodynamics”, Advanced Series on Ocean Engineering, Vol. 24, Ed. P LF Liu, WorldScientificPress.
11. U.S. Army Corps of Engineers, (2002). Coastal Engineering Manual. Engineer Manual 1110-2-1100, U.S. Army Corps of Engineers, Washington, D.C.
12. US Army Corps of Engineers, (1992). Coastal groins and nearshore breakwaters. Engineering Manual. Report EM 1110-2-1617.
13. Van Rijn, (1993). Principles of Sediment Transport in Rivers, Estuaries and Coastal Seas. AquaPublications, 386 pp.

## Lecture Time - Place:

• Monday, 12:45 – 15:30,
Rooms:
• Ζ. Κτ. 1 Πολ., Αιθ. 1

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