Author(s)

Y. Mizuta

Abstract

A procedure for straightforward vertical analysis of two-layered fluid on a slope is shown which can resolve the free surface and the density inter- face clearly by using the cells deformable in accordance with such movable boundaries. Those boundaries are treated generally together with others by "boundary equation". Tiny cells around the tip of the layers are treated carefully to cope with high waves. Reflection and collapse of an interfacial solitary wave on a slope were analyzed numerically. 1 Introduction In a two-layered fluid as formed by fresh and saline water at a river mouth, or by warm water discharged from a power plant, two types of waves called fast mode and slow mode can propagate. On a slope, waves are deformed asymmetrically while propagating ashore, and they are reflected back or brok

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