밀도층 유체에서 해양 방사파 패턴 특징

Characteristics of Ocean Wave Radiation Patterns in a Dense Layer of Fluid

초록

The sea is stratified with water that has different densities because of pressure, temperature, and salinity. When conducting studies of internal waves in the ocean, the fluid is assumed to have layers that have discrete densities. This assumption is made because it is difficult to achieve layers that exhibit gradual changes in the density of the water. In this study, we used previous studies on ocean waves and their radiation issues in the density layer fluid to investigate the characteristics of internal waves in the ocean and their radiation patterns induced by a moving body in a stratified fluid. We also studied the difference in wave radiation between the density gradient layer and the discrete density layer. We found that the wave radiation patterns depended on the velocity of the moving body and the change in the density of the water. The crest apex shift phenomenon was observed in the density gradient in the layer of fluid.

키워드

Brunt-Väisälä frequency 부력 주파수(브런트-바이살라 주파수)Internal wave 내부파Stratification 성층화Density gradient layer 연속 밀도층Discrete density layer 불연속 밀도층
제목
밀도층 유체에서 해양 방사파 패턴 특징
제목 (타언어)
Characteristics of Ocean Wave Radiation Patterns in a Dense Layer of Fluid
저자
민은홍최하윤김영규백광준구원철
DOI
10.26748/KSOE.2018.083
발행일
2019-02
유형
Y
저널명
한국해양공학회지
33
1
페이지
92 ~ 97