Browse > Article

Wave Propagation Models Due to Topographic Change: Scatterer Method and Transfer Matrix Method  

Seo, Seung-Nam (Coastal Engineering & Ocean Energy Research Department, KORDI)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.22, no.3, 2010 , pp. 163-170 More about this Journal
Abstract
Both scatterer method and transfer matrix method are compared to analyze their characteristics, which are wave propagation models due to topographic change based on plane wave approximation. Results from the scatterer method are closer to the results obtained by the more accurate existing models and it is appraised that the scatterer method gives the clearer explanation about physical process involved in the wave transformation. Since both methods have analytical solutions, in the computational point of view they are very fast and easy to be implemented. Both methods give a good prediction for wave scattering by relatively simple bedform.
Keywords
Topographic change; Wave propagation model; Plane wave approximation; Scatterer method; Transfer matrix method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Guazzelli, E., Rey, V. and Belzons, M. (1992). Higher-order Bragg reflection of gravity surface waves by periodic beds. J. Fluid Mech., 245, 301-317.   DOI
2 Devillard, P., Dunlop, F. and Souillard B. (1988). Localization of gravity waves on a channel with a random bottom, J. Fluid Mech., 186, 521-538.   DOI   ScienceOn
3 Miles, J.W. (1967). Surface-wave scattering matrix for a shelf. J. Fluid Mech., 28, 755-767.   DOI
4 O'Hare, T.J. and Davies, A.G. (1993). A comparison of two models for surface-wave propagation over rapidly varying topography. Applied Ocean Res., 15, 1-11.   DOI   ScienceOn
5 Porter, R. and Porter, D. (2003). scattered and free waves over periodic beds. J. Fluid Mech., 483, 129-163.   DOI   ScienceOn
6 서승남 (2008). 산란체법에 다중 계단지형에서의 파랑변형 계산. 한국해안.해양공학회논문집, 20(5), 439-451.   과학기술학회마을
7 서승남 (2009a). 단일계단 지형에서 변분근사법과 고유함수 전개법에 의한 파랑변형 비교. 한국해안.해양공학회논문집, 21(2), 91-107.   과학기술학회마을
8 서승남 (2009b). 분할행렬법에 의한 다중 계단지형에서의 파랑 변형 계산. 대한토목학회논문집, 29(4B), 377-384.
9 Athanassoulis G.A. and Belibassakis K.A. (1999). A consistent coupled-mode theory for the propagation of small-amplitude water waves over variable bathymetry regions. J. Fluid Mech., 389, 275-301.   DOI   ScienceOn
10 Booij, N. (1983). A note on the accuracy of the mild-slope equation. Coastal Eng., 7, 191-203.   DOI   ScienceOn
11 Davies, A.G. and Heathershaw, A.D. (1984). Surface-wave propagation over sinusoidally varying topography. J. Fluid Mech., 144, 419-443.   DOI   ScienceOn
12 Chamberlain, P.G. and Porter, D. (2006). Multi-mode approximations to wave scattering by an uneven bed. J. Fluid Mech., 556, 421-441.   DOI   ScienceOn