Propagation and run-up of nearshore tsunamis with HLLC approximate Riemann solver
- Authors
- Kim, Dae Hong; Cho, Yong Sik; Yi, Yong Kon
- Issue Date
- Jun-2007
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- shallow-water equations; HLLC approximate Riemann solver; nearshore tsunami; run-up
- Citation
- OCEAN ENGINEERING, v.34, no.8-9, pp.1164 - 1173
- Indexed
- SCIE
SCOPUS
- Journal Title
- OCEAN ENGINEERING
- Volume
- 34
- Number
- 8-9
- Start Page
- 1164
- End Page
- 1173
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/180027
- DOI
- 10.1016/j.oceaneng.2006.07.001
- ISSN
- 0029-8018
- Abstract
- A numerical model describing the propagation and run-up process of nearshore tsunamis in the vicinity of shorelines is developed based on an approximate Riemann solver. The governing equations of the model are the nonlinear shallow-water equations. The governing equations are discretized explicitly by using a finite volume method. The nonlinear terms in the momentum equations are solved with the Harten-Lax-van Leer-Contact (HLLC) approximate Riemann solver. The developed model is first applied to prediction of water motions in a parabolic basin, and propagation and subsequent run-up process of nearshore tsunamis around a circular island. Computed results are then compared with available analytical solutions and laboratory measurements. Very reasonable agreements are observed.
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