On the study of impulsive waves caused by landslides
Li, T.Q.; Troch, P.; De Rouck, J. (2009). On the study of impulsive waves caused by landslides, in: Chung, J.S. et al. The Proceedings of the 19th (2009) International Offshore and Polar Engineering Conference, Osaka, Japan, June 21-26, 2009. pp. 1264-1273
In: Chung, J.S. et al. (2009). The Proceedings of the 19th (2009) International Offshore and Polar Engineering Conference, Osaka, Japan, June 21-26, 2009. International Society of Offshore and Polar Engineers (ISOPE): California . ISBN 9781880653531. , more
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Document type: Conference paper
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the mass-force model; landslides; impulsive water waves; a two-phase solver; the GFM; the fictitious domain method |
| Abstract |
By extending LVOF to a two-phase model, we study impulsive waves created by landslides, based on our design of the massforce coupling model (Li et al., 2007a; 2008). LVOF is a highly efficient Navier-Stokes solver, constructed by a novel VOF finite volume cut-cell approach that incorporates surface tension plus a dynamic subgrid-scale model (Li et al., 2004; 2007).According to the fictitious domain method, the mass-force model represents the coupling of a moving body on the flow, by handling the rigid body distributed over the particle domain as a fluid. Additionally, a ghost cell method (GFM) is used to treat the boundary conditions near the particle-fluid interface. Grid refinement studies are performed for test problems involving aerial landslides. Very encouragingly, the results agree well with measurements available. It is demonstrated that our results can provide valuable base for the analysis of near-field characteristics of landslide generated impulsive waves, by LVOF. |
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