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REPORT DOCUMENTATION PAGE BERORHICOMEDEINGIRORM 
REPORT NUMBER 2. GOVT ACCESSION NO. RECIPIENT'S CATALOG NUMBER 
“MR 81-4 
4’. TITLE (and Subtitle) 5. TYPE OF REPORT & PERIOD COVERED 
MOVABLE-BED LABORATORY EXPERIMENTS COMPARING Miscellaneous Report 
RADIATION STRESS AND ENERGY FLUX FACTOR AS 
PREDICTORS OF LONGSHORE TRANSPORT RATE 
PERFORMING ORG. REPORT NUMBER 
6. 
7. AUTHOR(s) 8. CONTRACT OR GRANT NUMBER(s) 
Philip Vitale 
10. PROGRAM ELEMENT, PROJECT, TASK 
AREA & WORK UNIT NUMBERS 
D31193 
REPORT DATE 
april 1981 
Siusiee OF PAGES 
PERFORMING ORGANIZATION NAME AND ADDRESS 
Department of the Army 
Coastal Engineering Reserch Center (CERRE-CS) 
Kingman Building, Fort Belvoir, Virginia 22060 
Gs 
11. CONTROLLING OFFICE NAME AND ADDRESS 
Department of the Army 
Coastal Engineering Research Center 
Kingman Building, Fort Belvoir, Virginia 22060 
Ta. MONITORING AGENCY NAME & ADDRESS(if different from Controlling Office) 
15. SECURITY CLASS. (of thia report) 
UNCLASSIFIED 
15a. DECL ASSIFICATION/ DOWNGRADING 
SCHEDULE 
Approved for public release, distribution unlimited. 
16. DISTRIBUTION STATEMENT (of this Report) 
. DISTRIBUTION STATEMENT (of the abstract entered in Block 20, if different from Report) 
- SUPPLEMENTARY NOTES 
. KEY WORDS (Continue on reverse side if necessary and identify by block number) 
Energy flux Movable-bed experiments 
Longshore transport rate Radiation stress 
ABSTRACT (Continue on reverse side if necesaary and identify by block number) 
The results of three-dimensional movable-bed laboratory tests are used 
to empirically relate the longshore sediment transport rate to the radiation 
stress and the longshore energy flux factor. Both correlate equally well 
with the longshore transport rate, producing correlation coefficient squared 
values of approximately 0.70. The surf similarity parameter also shows a 
strong influence on the longshore transport rate. 
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