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Numerical model for tsunami generation by subaerial landslides
Author(s) -
Pasenow Frithjof,
Zilian Andreas,
Dinkler Dieter
Publication year - 2008
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200810519
Subject(s) - classification of discontinuities , discretization , compressibility , subaerial , partition of unity , momentum (technical analysis) , partition (number theory) , conservation of mass , sink (geography) , domain (mathematical analysis) , mechanics , mathematical analysis , mathematics , physics , geology , finite element method , geography , geochemistry , finance , economics , thermodynamics , cartography , combinatorics
A discretization method based on stabilized space–time finite elements is presented for the numerical analysis of three–fluid flows of immiscible and incompressible fluids. Signed distance functions are used to assign the material properties to each spatial point in the domain. The motion and the change in topology of fluid–fluid interfaces are implicitly described by the level–set method. Strong and weak discontinuities in the fields of the physical state variables are captured by locally enriched approximations based on the partition–of–unity concept. An interior penalty method enforces interfacial conservation of mass and momentum. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)