CAUSE AND CHARACTERISTICS OF IMPACT PRESSURE EXERTED BY SPILLING AND PLUNGING BREAKERS ON A VERTICAL WALL

Seyed Ali Azarmsa, Takashi Yasuda, Hidemi Mutsuda

Abstract


Detailed measurements of spilling and plunging wave pressures on a vertical wall are carried out to identify and compare their characteristics. Kinematical differences between the spilling and plunging breakers enable us to investigate better the generation mechanism and characteristics of the impact pressure. Further, the reliability of numerically computed breaking wave pressure is investigated through the comparisons with the experimental results. It is made clear that the impact pressure can be well expressed in terms of internal kinematics of breaking waves.

Keywords


vertical wall; plunging breaker; breaking waves; impact pressure; spilling breaker

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