Browse > Article

Inundation of Tsunamis Based on Quadtree Grid System  

Lin, Tae-Hoon (현대건설(주) 기술개발원)
Park, Koo-Yong (현대건설(주) 기술개발원)
Cho, Yong-Sik (한양대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.4, no.2, 2004 , pp. 71-76 More about this Journal
Abstract
To investigate the inundation of tsunamis in the vicinity of a circular island, a numerical model has been developed based on quadtree grids. The governing equations of the model are the nonlinear shallow-water equations. The governing equations are discretized explicitly by using a finite difference leap-frog scheme on adaptive hierarchical quadtree grids. The quadtree grids are generated around a circular island where refined with rectangular or circular domain. Obtained numerical results have been verified by comparing to available laboratory measurements of run-up heights. A good agreement has been achieved.
Keywords
quadtree grid system; inundation; run-up; tsunami; shallow-water equations;
Citations & Related Records
연도 인용수 순위
  • Reference
1 조용식(1998) 해안선에서의 지진해일 처오름높이의 증폭. 대한토목학회논문집， 대한토목학회， 제 18권， 제 II -1 호， pp. 41-46
2 Liu, P.L.-F. and Cho, Y.-S.(1994) An integral equation model for wave propagation with bottom frictions. Journal qf Watem:ay, Port, Coastal and Ocean Engineering, VoL 120, pp. 594-608
3 Liu, P.L.,-F., Cho, Y.-S., Yoon, S. B. and Sea, S. N. (1994) Numerical simulations of the 1960 Chilean tsunami propagation and inundation at Hilo, Hawaii, in Recent Development in Tsunami Research, edited by M.I. El-Sabh, Kluwer Academic Publishers
4 Gonzalez, F.I(1999) Tsunami. Scientific American; May, pp. 56-65
5 Cho, Y.-S. and Liu, P.L.-F.(1999) Crest length effects in nearshore tsunami run-up around islands. Journal of Geophysical Research, VoL 104, pp. 7907-7913
6 Roache. P. J. (1976) Computational Fluid Dynamics. Hermosa Publishers, pp. 446
7 Park, K. - Y.(1999) Quadtree grid numerical model qf nearshore uaoe-current interaction. Ph.D. thesis, Oxford Dniv., U.K
8 Liu, P.L.-F., Cho, Y.-S., Briggs, M.J., Kanoglu, U. and Synolakis, C. E.(1995). Run-up of solitary wave on a circular island. Journal qf Fluid Mechanics, VoL 302, pp. 259-285