水波と海洋構造物の強非線形相互作用に関する数値計算法

概要

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In high waves, ships or floating structures may experience highly nonlinear phenomena such as slamming and water on deck. The rapid progress in computer hardware makes it possible to study such problems with a direct numerical simulation technique in the time domain. The present paper is concerned with the development of a computer code, capable of treating complicated movement of the interface among gas, liquid, and solid. The developed numerical code is based on the CIP and C-CUP methods initiated by Yabe et al. After validating the code by computing the broken dam problem, performance of the method and the problems to be resolved are discussed through comparisons between computed and measured results for interactions of waves with a fixed structure. Moreover, in order to analyze nonlinear interactions of a floating body with waves of various conditions, a numerical wave tank is constructed. Using this numerical wave tank, the wave generation is simulated and accuracy of the generated wave and hydrodynamic forces on the wavemaker is discussed.
社団法人日本船舶海洋工学会の論文
2003-03-20