Abstract
A study on the characteristics of wash caused by the navigation of high-speed ships in restricted waterways was performed through numerical and experimental investigations. The Navier-Stokes and continuity equations, discretized by the finite-difference method, were used as the governing equations. To maintain accuracy in solving the problem, the convective terms in the governing equations were computed using the constrained interpolation profile (CIP) algorithm. The efficiency of the computation was improved by the adoption of a boundary-fitted coordinate system. In order to capture the wave-breaking phenomena, the interface capturing method was applied by using the level set method. A slight modification was given to the level set method for further precise calculations. Three-dimensional wave-breaking phenomena on the shore caused by the navigation of a high-speed ship were analyzed using the present method. The runup and rundown phenomena, with the related characteristics of flow, are discussed. Also, the distribution of flow velocity and pressure on the shore are dealt with in the research.
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