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http://dx.doi.org/10.5394/KINPR.2011.35.1.45

Analysis on Field Applicability of SWAN Nested Model  

Kim, Kang-Min (Port and Coastal Development Institute, Seil Engineering Co., Ltd.)
Dae, Nam-Ki (Dept. of Civil and Environmental Engineering, Graduate Division, Korea Maritime University)
Lee, Joong-Woo (Department of Civil Engineering, Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.35, no.1, 2011 , pp. 45-49 More about this Journal
Abstract
The recent trend for numerical experiment requires more higher resolution and accuracy. Generally, in the wave field calculation, it starts with a large region formulation first and follows by a separated detailed region formulation by more denser grids for the main interest area considering the geographical and bathymetrical variation. The wave fields resulted from the large region calculation is being introduced into the detail region calculation as the incident waves. In this process there exists a problem of continuity. In order to get over such problem, method of variable gridding system or spectrum sampling, etc., is being used. However, it seems not enough to examine and analyze the related numerical errors. Therefore, it is investigated in this study the field applicability of the most pervasive use of wave model, the nested SWAN model. For this purpose, we made model experiment for two coastal harbours with different tidal environment, and compared and analyzed the result. From the analysis, it was found that both the extracted values, near the boundaries of the large and detail region and the nested formulation of SWAN model, show almost the same and no different between those with different tidal environment conditions. However it is necessary for reducing the numerical errors to set the boundaries for the detailed region outside of the rapid bathymetric change and deeper region.
Keywords
Numerical experiment; Wave field calculation; Large region model; Detailed region model; Variable grid; SWAN model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 SWAN(2006), SWAN User Manual, Delft University of Technology.
2 SWAN(2009), SWAN Scientific and Technical Documentation, Delft University of Technology.
3 강시환, 안석진, 엄현민, 조휴상, “파랑-해류 상호작용에 의한 천해 설계파랑 변형”, 한국해안해양공학회논문집, 제21권, 제4호, pp.308-315.   과학기술학회마을
4 김강민, 강석형, 이중우, 권소현, 이훈(2005), “SWAN모형을 이용한 남서 도서해역에서의 설계 파라메타 추출”, 한국항해항만학회 춘계학술대회 논문집, pp. 253-260.   과학기술학회마을
5 남기대(2010), 실린더형 슬릿 방파제의 개발을 위한 실험적 해석, 한국해양대학교 공학석사 학위 논문.
6 Lee, J.W., Park, S.G., Kim, S.M., and Kang, S.J. (2009),“Design and Construction of the Cylindrical Slit TypeShore Structures", Asia Navigation Conference 2009,Shizuoka, Japan, Japan Institute Navigation, pp.292-298.
7 최병호, 김경옥, 박상욱, 엄현민, 고진석, 안성모(2002), “천해의 스펙트럼 해파모형:SWAN-WAM 결합모형의 한반도 해역에의 적용", 한국해안해양공학발표논문집, 제13권, pp.246- 255.
8 한국해양연구원(2005), 전해역 심해설계파 추정 보고서 II.
9 해양수산부(1997-2002), 해상파랑관측 및 조사.