Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling
To protect the coastal areas of the seas and oceans from the destructive force of tsunami waves, coastal and surface barriers are usually built. However, for high waves, these barriers turn into underwater barriers through which tsunami waves pass practically without losing their energy. In this pap...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | GeoHazards |
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| Online Access: | https://www.mdpi.com/2624-795X/3/1/7 |
| _version_ | 1827648811308154880 |
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| author | Boris Vladimirovich Boshenyatov |
| author_facet | Boris Vladimirovich Boshenyatov |
| author_sort | Boris Vladimirovich Boshenyatov |
| collection | DOAJ |
| description | To protect the coastal areas of the seas and oceans from the destructive force of tsunami waves, coastal and surface barriers are usually built. However, for high waves, these barriers turn into underwater barriers through which tsunami waves pass practically without losing their energy. In this paper, we study a new principle of suppression of the energy of tsunami waves by underwater barriers. The problems of experimental and numerical modeling of the processes of generation, propagation, and interaction of gravity wave of the tsunami type with underwater barriers are considered. It is shown that, under certain conditions near the underwater barriers, large-scale vortex structures occur that accumulate a significant part of the energy of the incident wave. Here, if the barriers parameter <i>h/(H + A)</i> = 0.84 ÷ 0.85 (<i>h</i>—height of the barriers, <i>A</i>—amplitude of incident wave on a barrier, <i>H</i>—depth of the reservoir), then the vortex structures accumulate up to 50% of the wave energy incident on the barrier. A theoretical model explaining the effect of anomalous vortex suppression of tsunami wave energy by underwater barriers has been developed. Theoretical calculations and results of numerical modeling based on the Navier–Stokes Equations are consistent with experimental studies in a hydrodynamic wave flume. |
| first_indexed | 2024-03-09T19:47:12Z |
| format | Article |
| id | doaj.art-554a5d83c5a54bfeb8231a70e6f15929 |
| institution | Directory Open Access Journal |
| issn | 2624-795X |
| language | English |
| last_indexed | 2024-03-09T19:47:12Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | GeoHazards |
| spelling | doaj.art-554a5d83c5a54bfeb8231a70e6f159292023-11-24T01:20:10ZengMDPI AGGeoHazards2624-795X2022-03-013112514310.3390/geohazards3010007Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical ModelingBoris Vladimirovich Boshenyatov0Institute of Applied Mechanics of Russian Academy of Sciences, 125040 Moscow, RussiaTo protect the coastal areas of the seas and oceans from the destructive force of tsunami waves, coastal and surface barriers are usually built. However, for high waves, these barriers turn into underwater barriers through which tsunami waves pass practically without losing their energy. In this paper, we study a new principle of suppression of the energy of tsunami waves by underwater barriers. The problems of experimental and numerical modeling of the processes of generation, propagation, and interaction of gravity wave of the tsunami type with underwater barriers are considered. It is shown that, under certain conditions near the underwater barriers, large-scale vortex structures occur that accumulate a significant part of the energy of the incident wave. Here, if the barriers parameter <i>h/(H + A)</i> = 0.84 ÷ 0.85 (<i>h</i>—height of the barriers, <i>A</i>—amplitude of incident wave on a barrier, <i>H</i>—depth of the reservoir), then the vortex structures accumulate up to 50% of the wave energy incident on the barrier. A theoretical model explaining the effect of anomalous vortex suppression of tsunami wave energy by underwater barriers has been developed. Theoretical calculations and results of numerical modeling based on the Navier–Stokes Equations are consistent with experimental studies in a hydrodynamic wave flume.https://www.mdpi.com/2624-795X/3/1/7tsunami waveswave flumeunderwater barriersexperimental and numerical simulationreflection and transmission coefficientstheoretical models |
| spellingShingle | Boris Vladimirovich Boshenyatov Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling GeoHazards tsunami waves wave flume underwater barriers experimental and numerical simulation reflection and transmission coefficients theoretical models |
| title | Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling |
| title_full | Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling |
| title_fullStr | Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling |
| title_full_unstemmed | Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling |
| title_short | Investigation of Tsunami Waves in a Wave Flume: Experiment, Theory, Numerical Modeling |
| title_sort | investigation of tsunami waves in a wave flume experiment theory numerical modeling |
| topic | tsunami waves wave flume underwater barriers experimental and numerical simulation reflection and transmission coefficients theoretical models |
| url | https://www.mdpi.com/2624-795X/3/1/7 |
| work_keys_str_mv | AT borisvladimirovichboshenyatov investigationoftsunamiwavesinawaveflumeexperimenttheorynumericalmodeling |