잠제의 형상 변화에 따른 반사파 및 투과파의 거동특성

• 영문명: Behaviors of Reflected and Transmitted Waves for Geometric Change of Submerged Breakwater
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이철응(Lee Cheol Eung) 오원택(O Won Taek)
• 간행물 정보: 『산업기술연구』vol.20, 1~10쪽, 전체 10쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2000.09.30

영문 초록

A numerical model is represented to calculate the wave fields such as the reflected waves, the transmitted waves, and depth averaged velocities over submerged breakwaters for the normally incident wave trains of nonlinear monochromatic wave. The numerical model is correctly formulated by using both the finite amplitude shallow water equations with the effects of bottom friction and the explicit dissipative Lax-Wendroff finite difference scheme, also satisfactorily verified by comparison with the other results. The behaviors of reflected and transmitted waves with respect to geometric parameters of submerged breakwater such as the slope, crest depth, and crest width are numerically analyzed in this study. In particular, the reflection and transmission coefficients are quantitatively calculated as the function of geometric parameter of submerged breakwater. It is found that the crest depth among parameters related to practical design may be the most important parameter in designing the submerged breakwater. Therefore, the effective and economic performances of submerged breakwater should be depended on the determination of optimal crest depth.

목차

Abstract

1. 서론

2. 수학적 모형의 수립

3. 수지모형의 수립

4. 수치모형의 검증

5. 잠제의 형상변화에 따른 해석

6. 결론

참고문헌

키워드

잠제 천수방정식 유한차분법 반사율 투과율 submerged breakwater finite amplitude shallow water equations finite difference method reflection coefficient transmission coefficient