Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths

We investigate a hydrodynamic equation system which—with some approximation—is capable of describing the tsunami propagation in the open ocean with the time-dependent self-similar Ansatz. We found analytic solutions of how the wave height and velocity behave in time and space for constant and linear...

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Main Authors: Imre Ferenc Barna, Mihály András Pocsai, László Mátyás
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/13/2311
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author Imre Ferenc Barna
Mihály András Pocsai
László Mátyás
author_facet Imre Ferenc Barna
Mihály András Pocsai
László Mátyás
author_sort Imre Ferenc Barna
collection DOAJ
description We investigate a hydrodynamic equation system which—with some approximation—is capable of describing the tsunami propagation in the open ocean with the time-dependent self-similar Ansatz. We found analytic solutions of how the wave height and velocity behave in time and space for constant and linear seabed functions. First, we study waves on open water, where the seabed can be considered relatively constant, sufficiently far from the shore. We found original shape functions for the ocean waves. In the second part of the study, we also consider a seabed which is oblique. Most of the solutions can be expressed with special functions. Finally, we apply the most common traveling wave Ansatz and present relative simple, although instructive solutions as well.
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spelling doaj.art-041b91dbb42247f19529096e2e6d38182023-12-01T21:35:36ZengMDPI AGMathematics2227-73902022-07-011013231110.3390/math10132311Time-Dependent Analytic Solutions for Water Waves above Sea of Varying DepthsImre Ferenc Barna0Mihály András Pocsai1László Mátyás2Wigner Research Centre for Physics, Konkoly–Thege Miklós út 29-33, H-1121 Budapest, HungaryWigner Research Centre for Physics, Konkoly–Thege Miklós út 29-33, H-1121 Budapest, HungaryDepartment of Bioengineering, Faculty of Economics, Socio-Human Sciences and Engineering, Sapientia Hungarian University of Transylvania, Libertătii Sq. 1, 530104 Miercurea Ciuc, RomaniaWe investigate a hydrodynamic equation system which—with some approximation—is capable of describing the tsunami propagation in the open ocean with the time-dependent self-similar Ansatz. We found analytic solutions of how the wave height and velocity behave in time and space for constant and linear seabed functions. First, we study waves on open water, where the seabed can be considered relatively constant, sufficiently far from the shore. We found original shape functions for the ocean waves. In the second part of the study, we also consider a seabed which is oblique. Most of the solutions can be expressed with special functions. Finally, we apply the most common traveling wave Ansatz and present relative simple, although instructive solutions as well.https://www.mdpi.com/2227-7390/10/13/2311partial differential equationsconservation laws and constitutive relationstsunamisphysical oceanographyocean waves and oscillations
spellingShingle Imre Ferenc Barna
Mihály András Pocsai
László Mátyás
Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths
Mathematics
partial differential equations
conservation laws and constitutive relations
tsunamis
physical oceanography
ocean waves and oscillations
title Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths
title_full Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths
title_fullStr Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths
title_full_unstemmed Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths
title_short Time-Dependent Analytic Solutions for Water Waves above Sea of Varying Depths
title_sort time dependent analytic solutions for water waves above sea of varying depths
topic partial differential equations
conservation laws and constitutive relations
tsunamis
physical oceanography
ocean waves and oscillations
url https://www.mdpi.com/2227-7390/10/13/2311
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