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NTIS 바로가기한국해안·해양공학회논문집 = Journal of Korean Society of Coastal and Ocean Engineers, v.30 no.3, 2018년, pp.114 - 122
신충훈 (한양대학교 ERICA 산학협력단) , 윤성범 (한양대학교 건설환경공학과)
This paper introduces a non-hydrostatic wave model SWASH for simulating wave interactions with porous structures. This model calculates the flow in porous media based on volume-averaged Reynolds-averaged Navier-Stokes equations (VARANS) in
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
연안 및 해안지역의 경사식 방파제의 역할은? | 다공성 구조물(porous structure)은 외해로부터 내습하는 파랑의 영향을 줄이고, 파랑 및 조류에 의한 표사 이동의 방지를 목적으로 폭넓게 활용되는 구조물이다. 특히 연안 및 해안지역의 경사식 방파제는 소파블록, 쇄석 등을 활용한 대표적인 다공성 구조물로 외해로부터 내습하는 파랑의 에너지를 소산시키기 위해 자주 사용된다. | |
VARANS 방정식을 이용한 수치모형의 한계는 무엇인가? | VARANS 방정식을 이용한 수치모형은 다공성 해안 구조물 내부 및 외부에서의 파랑 변형 및 흐름 등의 해석에 있어 비선형 천수방정식과 Boussinesq 방정식에 내재하는 제약을 극복하기 위해 적용될 수 있음이 많은 연구들에 의해 검증되었다. 그러나 정확도 높은 계산 결과를 얻기 위해서는 매우 조밀한 계산 격자를 필요로 하고 그로 인한 계산 시간의 증가로 인해 넓은 공간으로 확장하지 못하는 한계가 있다. 이러한 한계를 극복하고자 최근 계산시간을 단축시키며 정확도 높은 계산을 위해 비정수압(non-hydrostatic) 가정을 이용한 수치모형들이 개발되었으며 그 활용 범위가 넓어지고 있다. | |
다공성 구조물이란? | 다공성 구조물(porous structure)은 외해로부터 내습하는 파랑의 영향을 줄이고, 파랑 및 조류에 의한 표사 이동의 방지를 목적으로 폭넓게 활용되는 구조물이다. 특히 연안 및 해안지역의 경사식 방파제는 소파블록, 쇄석 등을 활용한 대표적인 다공성 구조물로 외해로부터 내습하는 파랑의 에너지를 소산시키기 위해 자주 사용된다. |
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