CE 515 – Littoral Processes

Fall Term, 2007

2007 Catalog Data:

CE 515 – Littoral Processes. Credits 3. Shoreline developments; nearshore hydrodynamics; sediment transport phenomena by waves and currents; methods of determininglittoral transport quantities; effects of groins, jetties, and other coastal structures on littoral processes. Prerequisites: CE 414 or equivalent.

Textbook:

Dean, R.G., and Dalrymple, R.A., (2004) Coastal Processes with Engineering Applicationss, Cambridge University Press, paperback edition, Cambridge, UK.

Electronic Resource (accessible from campus only): http://site.ebrary.com/lib/bogazici/Doc?id=10014609

References:

Fredsoe, J., and Deigaard, R., (1992) Mechanics of Coastal Sediment Transport, World Scientific, Advanced Series in Ocean Engineering, Vol. 3, Singapore.

 

Dean, R.G., and Dalrymple, R.A., (1992) Water Wave Mechanics, World Scientific, Advanced Series in Ocean Engineering, Vol. 2, Singapore.

 

Dean, R.G., (2002) Beach Nourishment :Theory and Practice, World Scientific, Advanced Series in Ocean Engineering, Vol. 18, Singapore.

Coordinator:

Emre Otay, Assoc. Prof. of Civil Engineering

Goals:

The course is designed to provide graduate and senior undergraduate students with an understanding of sediment transport processes and its implications for the morphodynamics of the coastal zone.

 

Prerequisites by topic:
Fluid Mechanics and basic knowledge of ocean waves.

Topics:
(Based on 12 weeks of instruction: 3 hours a week x 12 weeks + 2 midterms + 1 final exam)

  1. Introduction, examples of engineering applications, sediment properties (1 hr).
  2. Long-term forces and response: Sea Level change (1 hr).
  3. Profıle and planform response, concept of equilibrium planform and profile (1 hr).
  4. Characteristics of coastal landforms and responsible forces: Spits, tombolos, cuspate features, barrier islands (3 hrs).
  5. Equilibrium beach profiles, constructive and destructive forces, governing equations (3 hrs).
  6. Cross-shore sediment transport, boundary conditions, time scales of erosion and recovery (3 hrs).

7.      Development and application of various types of cross-shore sediment transport models (3 hrs).

      MID-TERM EXAM.

  1. Longshore sediment transport, energetics approach, distribution across the surfzone (3 hrs.)
  2. Continuity equation, Pelnard Considere equation, analytic solution, initial and boundary conditions (3 hrs).
  3. Numerical modeling, One-Line and N-Line. Implicit and explicit forms (3 hrs).
  4. Numerical solution of beach nourishment, littoral barriers, sediment source (river), sink (sand mining) (3 hrs).

      MID-TERM EXAM

  1. Miscellaneous coastal features: Beach cusps, rip currents, longshore bars, cuspate forelands, crenulate bays (3 hrs).
  2. Methods of analysis and shore protection. Sediment budget, groins offshore breakwaters, beach nourishment, innovative approaches (3 hrs).

14.  Introduction to combined 3-D sediment transport modeling, application in coastal projects (3 classes).

      FINAL EXAM.

Computer usage:
Students are asked to develop computer programs to complete homework and class projects related to numerical models for coastal sediment transport.

Engineering Science: 3 credit
Engineering Design: 0 credit 

Prepared by: Emre Otay               Date: September, 2007.
 
CE 515 – Littoral Processes. (Kıyısal Taşınım Süreçleri) Credits 3.

Shoreline developments; nearshore hydrodynamics; sediment transport phenomena by waves and currents; analytical and numerical methods of determining littoral transport quantities; effects of groins, jetties and other coastal structures on littoral processes; coastal erosion due to nearshore perturbations; design implementations of dredging operations, beach and nearshore nourishments. Prerequisites: CE 414 or equivalent.