Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides
Impulse waves generated by subaerial landslides of a block model along a frictionless surface are investigated numerically based on a combination of immersed boundary method and lattice Boltzmann method. A wave propagation model is proposed through machine learning. The observed impulse waves are cl...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0130691 |
| _version_ | 1797947394630877184 |
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| author | Xiangjian Feng Liang Cheng Qianqian Dong Xiang Qi Chengwang Xiong |
| author_facet | Xiangjian Feng Liang Cheng Qianqian Dong Xiang Qi Chengwang Xiong |
| author_sort | Xiangjian Feng |
| collection | DOAJ |
| description | Impulse waves generated by subaerial landslides of a block model along a frictionless surface are investigated numerically based on a combination of immersed boundary method and lattice Boltzmann method. A wave propagation model is proposed through machine learning. The observed impulse waves are classified into Stokes-like waves, solitary-like waves, cnoidal-like waves, and bore-like waves. The influence of the slope angle and the slide front angle on the generation and propagation of impulse waves is investigated from the perspectives of the quantitative analyses on primary wave amplitude and energy transformation. The energy release, dissipation, and propagation of the impulsive waves are investigated based on energy conservation principles. The wave propagation model based on the random forest model is established upon a priori classification of wave types. By comparison with the available numerical results, the accuracy of the proposed wave propagation model in predicting free water surface elevations is demonstrated. |
| first_indexed | 2024-04-10T21:26:02Z |
| format | Article |
| id | doaj.art-5a34407c41b54f77a883516a46d24f2b |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-10T21:26:02Z |
| publishDate | 2022-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-5a34407c41b54f77a883516a46d24f2b2023-01-19T16:47:09ZengAIP Publishing LLCAIP Advances2158-32262022-12-011212125118125118-1610.1063/5.0130691Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslidesXiangjian Feng0Liang Cheng1Qianqian Dong2Xiang Qi3Chengwang Xiong4School of Marine Science and Engineering, South China University of Technology, Guangzhou 511442, People’s Republic of ChinaSchool of Marine Science and Engineering, South China University of Technology, Guangzhou 511442, People’s Republic of ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of ChinaImpulse waves generated by subaerial landslides of a block model along a frictionless surface are investigated numerically based on a combination of immersed boundary method and lattice Boltzmann method. A wave propagation model is proposed through machine learning. The observed impulse waves are classified into Stokes-like waves, solitary-like waves, cnoidal-like waves, and bore-like waves. The influence of the slope angle and the slide front angle on the generation and propagation of impulse waves is investigated from the perspectives of the quantitative analyses on primary wave amplitude and energy transformation. The energy release, dissipation, and propagation of the impulsive waves are investigated based on energy conservation principles. The wave propagation model based on the random forest model is established upon a priori classification of wave types. By comparison with the available numerical results, the accuracy of the proposed wave propagation model in predicting free water surface elevations is demonstrated.http://dx.doi.org/10.1063/5.0130691 |
| spellingShingle | Xiangjian Feng Liang Cheng Qianqian Dong Xiang Qi Chengwang Xiong Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides AIP Advances |
| title | Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides |
| title_full | Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides |
| title_fullStr | Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides |
| title_full_unstemmed | Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides |
| title_short | Numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides |
| title_sort | numerical study of hydraulic characteristics of impulse waves generated by subaerial landslides |
| url | http://dx.doi.org/10.1063/5.0130691 |
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