Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides
Using the existing two-dimensional experimental data and Open-source Fields Operation and Manipulation (OpenFOAM) software, this study performs a comprehensive comparative analysis of three types of landslide-generated tsunamis (subaerial, partially submerged, and submarine). The primary objective w...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | GeoHazards |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2624-795X/5/4/54 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850242189086425088 |
|---|---|
| author | Tomoyuki Takabatake Ryosei Takemoto |
| author_facet | Tomoyuki Takabatake Ryosei Takemoto |
| author_sort | Tomoyuki Takabatake |
| collection | DOAJ |
| description | Using the existing two-dimensional experimental data and Open-source Fields Operation and Manipulation (OpenFOAM) software, this study performs a comprehensive comparative analysis of three types of landslide-generated tsunamis (subaerial, partially submerged, and submarine). The primary objective was to assess whether numerical simulations can accurately reproduce the experimental results of each type and to compare the predictive equations of the tsunami amplitudes derived from experimental and simulated data. The mesh size and dynamic viscosity parameters were initially optimized for a specific partially submerged landslide tsunami scenario and then applied across a broader range of experimental scenarios. Most of the simulated wave amplitudes remained within the 50% error margin, although significant discrepancies were observed between landslide types. When focusing on the crest amplitude of the first wave, the simulations of subaerial landslides least deviated from the experimental data, with a mean absolute percentage error of approximately 20%, versus approximately 40% for the partially submerged and submarine landslides. The predictive equations derived from the simulations closely matched those from the experimental data, confirming that OpenFOAM can effectively capture complex landslide–tsunami dynamics. Nonetheless, variations in the coefficients related to slope angles highlight the need for further calibration to enhance the simulation fidelity. |
| format | Article |
| id | doaj-art-861ec4ecfeef49a3b4e3fdfeda33b0ba |
| institution | OA Journals |
| issn | 2624-795X |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | GeoHazards |
| spelling | doaj-art-861ec4ecfeef49a3b4e3fdfeda33b0ba2025-08-20T02:00:22ZengMDPI AGGeoHazards2624-795X2024-10-01541152117110.3390/geohazards5040054Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine LandslidesTomoyuki Takabatake0Ryosei Takemoto1Department of Civil and Environmental Engineering, Kindai University, Higashi Osaka City 577-8502, Osaka, JapanDepartment of Civil and Environmental Engineering, Kindai University, Higashi Osaka City 577-8502, Osaka, JapanUsing the existing two-dimensional experimental data and Open-source Fields Operation and Manipulation (OpenFOAM) software, this study performs a comprehensive comparative analysis of three types of landslide-generated tsunamis (subaerial, partially submerged, and submarine). The primary objective was to assess whether numerical simulations can accurately reproduce the experimental results of each type and to compare the predictive equations of the tsunami amplitudes derived from experimental and simulated data. The mesh size and dynamic viscosity parameters were initially optimized for a specific partially submerged landslide tsunami scenario and then applied across a broader range of experimental scenarios. Most of the simulated wave amplitudes remained within the 50% error margin, although significant discrepancies were observed between landslide types. When focusing on the crest amplitude of the first wave, the simulations of subaerial landslides least deviated from the experimental data, with a mean absolute percentage error of approximately 20%, versus approximately 40% for the partially submerged and submarine landslides. The predictive equations derived from the simulations closely matched those from the experimental data, confirming that OpenFOAM can effectively capture complex landslide–tsunami dynamics. Nonetheless, variations in the coefficients related to slope angles highlight the need for further calibration to enhance the simulation fidelity.https://www.mdpi.com/2624-795X/5/4/54tsunamilandslidesubaerial landslidepartially submerged landslidesubmarine landslideOpenFOAM |
| spellingShingle | Tomoyuki Takabatake Ryosei Takemoto Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides GeoHazards tsunami landslide subaerial landslide partially submerged landslide submarine landslide OpenFOAM |
| title | Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides |
| title_full | Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides |
| title_fullStr | Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides |
| title_full_unstemmed | Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides |
| title_short | Numerical Modeling of Tsunamis Generated by Subaerial, Partially Submerged, and Submarine Landslides |
| title_sort | numerical modeling of tsunamis generated by subaerial partially submerged and submarine landslides |
| topic | tsunami landslide subaerial landslide partially submerged landslide submarine landslide OpenFOAM |
| url | https://www.mdpi.com/2624-795X/5/4/54 |
| work_keys_str_mv | AT tomoyukitakabatake numericalmodelingoftsunamisgeneratedbysubaerialpartiallysubmergedandsubmarinelandslides AT ryoseitakemoto numericalmodelingoftsunamisgeneratedbysubaerialpartiallysubmergedandsubmarinelandslides |