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2017, issue 4

RUN-UP CHARACTERISTICS OF THE SOLITARY WAVES ON THE COAST IN THE BAYS WITH DIFFERENT CROSS-SECTION CONFIGURATIONS

A.Yu.Bazykina, V.V.Fomin

Abstract
Based on the numerical long-wave model the run-up characteristics of the solitary waves in the bays with an U-shaped cross-sectional shape are investigated. An influence of the wave parameters and basin geometry at the run-up height of waves and the drainage depth of the coast in the narrow bays with a triangular, parabolic and rectangular cross-section is presented. It is shown that an increase of the initial wave height and the distance traveled by the wave to the shore, and a decrease of the slope angle of the coastal slope leads to a growth of the wave steepness, which in turn increases the wave run-up characteristics on the coast. The largest run-up heights of the waves are observed in the basins with a triangular cross-sectional shape, and in basins with a rectangular bottom the run-up characteristics are the least sensitive to changes of the wave parameters.

KEYWORDS
nonlinear long waves, narrow bays with U-shaped cross-section, numerical solution, wave increase, wave run-up on the coast

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