Author(s)

S. Sakai, N. Nakashiki, S. Matsunashi, T. Tsubono & K. Maruyama

Abstract

The purpose of this study is to investigate the diffusion mechanism of thermal water, behaving a forced plume, discharged from a power plant with in-situ obser- vation and numerical approach. A three-dimensional k-e-E model was developed to predict the diffusion process and to apply in practical uses. The field observa- tion was conducted to investigate the dispersion process of a forced plume in a sea where a semidiurnal tidal current was dominant and a large amount of ther- mal water ~50m^/s was discharged from a thermal power plant with multiple pipes. The horizontal eddy diffusivity in the area where each plume overlapped and formed one large plume was well estimated by the width of a plume*. The obse

Keywords