Propagation and run-up of nearshore tsunamis with HLLC approximate Riemann solver

Dae Hong Kim, Yong Sik Cho, Yong Kon Yi

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

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.

Original languageEnglish
Pages (from-to)1164-1173
Number of pages10
JournalOcean Engineering
Volume34
Issue number8-9
DOIs
StatePublished - Jun 2007

Keywords

  • HLLC approximate Riemann solver
  • Nearshore tsunami
  • Run-up
  • Shallow-water equations

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