ARTÍCULO
TITULO

Wave Transformation behind a Breakwater in Jukbyeon Port, Korea?A Comparison of TOMAWAC and ARTEMIS of the TELEMAC System

Jong-Dae Do    
Sang-Kwon Hyun    
Jae-Youll Jin    
Byunggil Lee    
Weon-Mu Jeong    
Kyong-Ho Ryu    
Won-Dae Back    
Jae-Ho Choi and Yeon S. Chang    

Resumen

Severe shoreline erosions are commonly observed due to the side effects of breakwaters constructed to protect the habitat. These breakwaters can cause wave energy differences behind the structure due to diffraction, inducing longshore sediment transport and resulting in shoreline changes. Therefore, it is essential to correctly simulate the effect of wave transformation in the lee side of structures, but such studies reporting performance of models in the field have been relatively rare. In this study, two wave models of the TELEMAC system were used to investigate the accuracy of modeling the wave transformation effect in a lee area of a breakwater built to secure the harbor?s tranquility, near Jukbyeon Port in Korea, through comparisons with field observations. Two cases of wave conditions with different wave heights and directions were tested. In both cases, the TEL EMAC?ARTEMIS model had lower errors than TELEMAC?TOMAWAC at the onshore wave location, confirming that the phase-resolving ARTEMIS showed better performance in simulating the wave transformation than the phase-averaged TOMAWAC, as expected. However, ARTEMIS had slightly higher errors than TOMAWAC at the offshore location, probably due to the interference by reflected waves from the complex coastlines formed by the different coastal structures. The results also provide various implications learned from the numerical experiments, which can be usefully applied to engineering aspects, such as for the estimation of harbor tranquility.

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