Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



Technical Report CERC-86-3 



2. GOVT ACCESSION NO. 



3. RECIPIENT'S CATALOG NUMBER 



*. TITLE (and Subtitle) 



SEAWALL BOUNDARY CONDITION IN NUMERICAL 

 MODELS OF SHORELINE EVOLUTION 



S. TYPE OF REPORT 4 PERIOD COVERED 



Final report 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORf»; 



Hans Hanson 

 Nicholas C. Kraus 



8. CONTRACT OR GRANT NUMBERfs) 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of Water Resources Engineering 



Lund Institute of Technology 



University of Lund 



Box 118, Lund, Sweden S-221-00 



and US Army Engineer Waterways Experiment Station 



Coastal Engineering Research Center 



PO Box 631, Vicksburg, Mississippi 39180-0631 



10. PROGRAM ELEMENT, PROJECT, TASK 

 AREA 4 WORK UNIT NUMBERS 



12. REPORT DATE 



April 1986 



13. NUMBER OF PAGES 



59 



IS. SECURITY CLASS, (of thla report) 



Unclassified 



II. CONTROLLING OFFICE NAME AND ADDRESS 



DEPARTMENT OF THE ARMY 



US Army Corps of Engineers 



Washington, DC 20314-1000 



ISo. DECLASSIFI CATION/ DOWN GRADING 

 SCHEDULE 



l«. MONITORING AGENCY NAME 4 ADDRESSflf dlllerent from Controlling Office) 



16. DISTRIBUTION ST ATEMENT (at thle Report) 



Approved for public release; distribution unlimited 



17. DISTRIBUTION STATEMENT (of the abstract entered In Block 20, If different from Report) 



18. SUPPLE' ENTARY NOTES 



Available from National Technical Information Service, 5285 Port Royal Road, 

 Springfield, Virginia 22161. 



19. KEY WORDS (Continue on reveree tide If necessary and Identify by block number) 



Sea-walls (LC) 



Coast changes — Mathematical models (LC) 



Beach erosion — Mathematical models (LC) 



Shore protection (LC) 



Coastal engineering (LC) 



20. ABSTRACT (Corrttrma mat revere* et-dm ft nevceaeary and Identity by btock number) 



This report gives a complete description of the method of Hanson and 

 Kraus (1985) for implementing the seawall boundary condition in the shore- 

 line change numerical model. The physical basis and governing principles are 

 discussed in a descriptive way in Parts I and II. Technical details of the 

 shoreline model and implementation of the seawall boundary condition are given 

 in Part III. Example calculation and computer programs for both the explicit 

 and implicit numerical solution schemes are also given. 



nn FC 



°W 1 jt 



1<73 



EDtTlOH OF I MOV 6S IS OBSOLETE 



Unclassified 



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