OS1519-461 固液連成界面における固体材料の表面状態が波動伝播へ及ぼす影響

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  • OS1519-461 Effect of Surface Condition of Solid Materials on Wave propagation at Solid-Fluid Interface with Fluid-Structure Interaction

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Fluid-structure interaction is one of the most important phenomena to be clarified and controlled in many industrial fields. In some problems, interaction mechanism strongly depends on wave propagation across the interface of solid and fluid. Although many studies have been conducted about fluid-structure interaction, the mechanism of wave propagation across to the solid-fluid interface remains unclear. In this study, we investigated the effect of surface conditions such as surface roughness and wettability of solid materials to wave propagation across the interface. The results of the experiments indicated that due to the wettability of the solid surface, the intensity of the cavitation which appeared near the interface was changed and theoretical assumption of the interface continuity may not be valid under some conditions.

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