B315 離散特異点法による縦スロッシングの数値解析

概要

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The authors propose a novel numerical method to study the dynamic behaviour of liquid free surface. This method, which is based on a discrete singularity method with a Green function for the Laplace equation as a singularity, enables us to simulate three-dimensional complex-boundary problems more easily and efficiently. In the present study, in order to confirm the effectivity of this method the authors try to simulate the behaviour in a cylindrical container and an equilateral-triangle-section container which are vibrated vertically. At first, to estimate errors, the authors computed it in a cylindrical container. Secondly, to investigate surface-tension effects, the authors computed it in a cylindrical container. Results were compared with experimental or theoretical values and showed good agreement. Finally, in an equilateral-triangle-section container, the authors computed the behaviour, and revealed some sloshing modes, which were confirmed experimentally.
日本流体力学会の論文
2000-07-25