DEVELOPMENT OF A COMBINED METHOD OF BEM AND VOF FOR ANALYZING WAVE MOTION

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  • ＢＥＭとＶＯＦを結合した波動場解析法の開発

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A numerical analysis model, based on the coupling of a Boundary Element Method (BEM) which is applied to the region far from the structure where the fluid motion is less non-linear and a Volume Of Fluid (VOF) method which is applied to the region near the structure where the fluid motion is highly non-linear, is developed. Two methods were combined under the principles of continuities of the velocity and the pressure. The validity of the method was checked comparing the numerical results with the theoretical ones for wave profiles. Although the combined method showed the superiority over each single method, in the present state, several problems to be further settled were found on the numerical accuracy and stability.

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