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Paper Information

Title: 

NUMERICAL AND EXPERIMENTAL MODELING OF WAVE EVOLUTION OVER SUBMERGED BREAKWATERS

Type: PAPER
Author(s): TAJZIYEHCHI MOJTABA,COX RONALD J.
 
 
 
Name of Seminar: INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS) PORTS & MARITIME ORGANIZATION
Type of Seminar:  CONFERENCE
Sponsor:  PORTS AND MARITIME ORGANIZATION
Date:  2008Volume 8
 
 
Abstract: 

TWO DIMENSIONAL EXPERIMENTAL AND NUMERICAL MODELING OF WAVE TRANSMISSION OVER DETACHED SUBMERGED BREAKWATERS HAS BEEN CARRIED OUT IN THIS PAPER. A COMPREHENSIVE SERIES OF 2D LABORATORY EXPERIMENTS HAVE BEEN CONDUCTED IN THE 3 M WIDE WAVE FLUME INCLUDING WIDE VARIETY OF WAVE CLIMATES, BREAKWATER GEOMETRY AND WATER DEPTH. THE 2D LABORATORY TESTS EXAMINED WAVE BREAKING AS WELL AS WAVE TRANSMISSION OVER SUBMERGED BREAKWATER/REEF STRUCTURES.
DIFFERENT APPROACHES TO EXPERIMENTAL DATA PROCESSING ARE EXAMINED IN PRODUCING RELIABLE APPLICATION OF THE 2D LABORATORY MEASUREMENTS. SENSITIVITY OF WAVE TRANSMISSION COEFFICIENT, OVER SUBMERGED BREAKWATERS TO VARIOUS DIMENSIONAL AND NON-DIMENSIONAL PARAMETERS IS COMPREHENSIVELY INVESTIGATED. PREVIOUSLY PUBLISHED EXPERIMENTAL STUDIES FOR PREDICTING/CALCULATING WAVE BREAKING AND WAVE TRANSMISSION ARE DISCUSSED AND COMPARED WITH THE PRESENT EXPERIMENTAL RESULTS. IMPROVED EMPIRICAL EQUATIONS/MODELS ARE PRESENTED.
THE 2D DEPTH AVERAGED NUMERICAL MODELING OF WAVE TRANSMISSION OVER SUBMERGED BREAKWATERS WAS INVESTIGATED USING THE RECENT RESEARCH VERSION OF DELFT3D. WAVE ENERGY DISSIPATION MODEL OF BATTJES AND JANSSEN (1978) WAS FOUND TO OVERESTIMATE WAVE-INDUCED BREAKING DISSIPATION OVER SUBMERGED BREAKWATERS. ALTERNATIVE EQUATIONS FOR WAVE BREAKER PARAMETER WERE DEVELOPED FOR INCORPORATION IN THE MODEL OF BATTJES AND JANSSEN (1978) TO IMPROVE THE CALCULATION OF TRANSMITTED WAVE HEIGHT OVER AND BEHIND SUBMERGED BREAKWATERS/REEFS.

 
Keyword(s): SUBMERGED BREAKWATERS, WAVE TRANSMISSION, BREAKER PARAMETER, ENERGY DISSIPATION
 
 
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