Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography

In this study, the propagation and evolution characteristics of internal solitary waves on slope topography in stratified fluids were investigated. A numerical model of internal solitary wave propagation based on the nonlinear potential flow theory using the multi-domain boundary element method was...

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Autores principales:	Yingjie Hu, Li Zou, Xinyu Ma, Zhe Sun, Aimin Wang, Tiezhi Sun
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	internal solitary waves boundary element method numerical simulation potential flow Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/94042eadca7e49d98d88570d443dd7df
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spelling	oai:doaj.org-article:94042eadca7e49d98d88570d443dd7df2021-11-25T18:04:29ZNumerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography10.3390/jmse91112242077-1312https://doaj.org/article/94042eadca7e49d98d88570d443dd7df2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1224https://doaj.org/toc/2077-1312In this study, the propagation and evolution characteristics of internal solitary waves on slope topography in stratified fluids were investigated. A numerical model of internal solitary wave propagation based on the nonlinear potential flow theory using the multi-domain boundary element method was developed and validated. The numerical model was used to calculate the propagation process of internal solitary waves on the topography with different slope parameters, including height and angle, and the influence of slope parameters, initial amplitude, and densities jump of two-layer fluid on the evolution of internal solitary waves is discussed. It was found that the wave amplitude first increased while climbing the slope and then decreased after passing over the slope shoulder based on the calculation results, and the wave amplitude reached a maximum at the shoulder of the slope. A larger height and angle of the slope can induce larger maximum wave amplitude and more obvious tail wave characteristics. The wave amplitude gradually decreased, and a periodic tail wave was generated when propagating on the plateau after passing the slope. Both frequency and height of the tail wave were affected by the geometric parameters of the slope bottom; however, the initial amplitude of the internal solitary wave only affects the tail wave height, but not the frequency of the tail wave.Yingjie HuLi ZouXinyu MaZhe SunAimin WangTiezhi SunMDPI AGarticleinternal solitary wavesboundary element methodnumerical simulationpotential flowNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1224, p 1224 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	internal solitary waves boundary element method numerical simulation potential flow Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	internal solitary waves boundary element method numerical simulation potential flow Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Yingjie Hu Li Zou Xinyu Ma Zhe Sun Aimin Wang Tiezhi Sun Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography
description	In this study, the propagation and evolution characteristics of internal solitary waves on slope topography in stratified fluids were investigated. A numerical model of internal solitary wave propagation based on the nonlinear potential flow theory using the multi-domain boundary element method was developed and validated. The numerical model was used to calculate the propagation process of internal solitary waves on the topography with different slope parameters, including height and angle, and the influence of slope parameters, initial amplitude, and densities jump of two-layer fluid on the evolution of internal solitary waves is discussed. It was found that the wave amplitude first increased while climbing the slope and then decreased after passing over the slope shoulder based on the calculation results, and the wave amplitude reached a maximum at the shoulder of the slope. A larger height and angle of the slope can induce larger maximum wave amplitude and more obvious tail wave characteristics. The wave amplitude gradually decreased, and a periodic tail wave was generated when propagating on the plateau after passing the slope. Both frequency and height of the tail wave were affected by the geometric parameters of the slope bottom; however, the initial amplitude of the internal solitary wave only affects the tail wave height, but not the frequency of the tail wave.
format	article
author	Yingjie Hu Li Zou Xinyu Ma Zhe Sun Aimin Wang Tiezhi Sun
author_facet	Yingjie Hu Li Zou Xinyu Ma Zhe Sun Aimin Wang Tiezhi Sun
author_sort	Yingjie Hu
title	Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography
title_short	Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography
title_full	Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography
title_fullStr	Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography
title_full_unstemmed	Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography
title_sort	numerical simulation for the evolution of internal solitary waves propagating over slope topography
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/94042eadca7e49d98d88570d443dd7df
work_keys_str_mv	AT yingjiehu numericalsimulationfortheevolutionofinternalsolitarywavespropagatingoverslopetopography AT lizou numericalsimulationfortheevolutionofinternalsolitarywavespropagatingoverslopetopography AT xinyuma numericalsimulationfortheevolutionofinternalsolitarywavespropagatingoverslopetopography AT zhesun numericalsimulationfortheevolutionofinternalsolitarywavespropagatingoverslopetopography AT aiminwang numericalsimulationfortheevolutionofinternalsolitarywavespropagatingoverslopetopography AT tiezhisun numericalsimulationfortheevolutionofinternalsolitarywavespropagatingoverslopetopography
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Numerical Simulation for the Evolution of Internal Solitary Waves Propagating over Slope Topography

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