基礎水理・数値解析

[II-111] Development of a numerical modelling for the breaking of internal solitary waves

〇Yuan Wang¹ (1.Kobe university)

Keywords: Internal solitary wave, friction loss model, hydrostatic model, overturn, full-scale vertical circulation

Overturn in a large lake is likely to be suppressed due to global warming. In 2019, full-scale vertical circulation, which is so-called “deep breathing of Lake Biwa”, didn’t occur, and there is the possibility that similar phenomenon will occur in the future. Therefore, it is concerned about the serious damage to the ecosystem, and it is needed to estimate how global warming affects the large-lake environment. In this study, we focused on the internal solitary waves, high-frequency internal waves, in order to improve the reproducibility of a three-dimensional environmental model on stratified flows.