Author(s): Aurelie Louis-Napoleon; Philippe Heinrich; Stephane Abadie
Linked Author(s):
Keywords: No Keywords
Abstract: Many tsunamis, consecutive or not to strong earthquakes, are generated or accentuated by the triggering of sub-aerial or submarine land collapses. This is the case of several historical tsunamis (Nice, 1564,1979; Ligure Sea, 1887; Polynesia 1979; Papua, 1998; Java, 2012; Greenland, 2017; Anak Krakatau, 2018) that have impacted several kilometers of near or distant coasts. In this context, the scientific community faces the challenge of accurately simulating potential gravity tsunamis to estimate the inundation heights at the coast. Navier-Stokes simulation of multiphase flow (e. g., Abadie et al., 2021 and 2020) would be one of the most advanced alternative to tackle this challenge (compared for instance to the often used shallow water model). Among the different platforms which proposes this type of models, OpenFOAM is maybe one of the most promising, owing to the large community of developers involved. For landslide tsunamis, it was previously validated on experimental subaerial and submarine tsunamis problems in both 2-D and 3-D (Romano et al., 2023, Paris et al., 2021, Rauter et al., 2022). Regarding 3D real cases, only very few attempts are reported in the literature (e. g., Rauter et al., 2022). Beyond the computational load which is significant, the difficulty has also to do with the construction of the case and the strategy adopted. To that respect, several bottlenecks can be listed.
Year: 2024