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A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction

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Summary:In this work, a fully combined tsunami model was developed, by coupling a sequence of 3 distinct numerical models, with different characteristics, for particular phases of the tsunami lifecycle. The computational codes that compose the fully combined tsunami model are the GeoClaw code, the FUNWAVE-TVD code and the OpenFOAM code, via the olaFlow solver. The coupling of GeoClaw with FUNWAVE-TVD was designated as the combined model 1 (CM1) and the combination of FUNWAVE-TVD/CM1 with the CFD code was designated as the combined model 2 (CM2). The full combination of both CM1 and CM2 resulted in the fully combined tsunami model CM. To achieve the coupling between numerical models, individual coupling methodologies were approached, tested and analysed. For the CM1, we choose a refined covered gauge domain coupling methodology and for the CM2 a timeSeries condition coupling methodology was used, which applied waveType wavemaker and the waveTheory tveta, from the olaFlow module. The validation of the individual numerical codes and of the combined model patches was performed with both numerical and physical test cases. Several physical experiments were carried out to generate both solitary and N-waves and a novel first-order theoretical formulation, necessary to generate N-waves experimentally, by means of a piston wave generating system, was developed and detailed in this work. The large-scale physical experiments were performed in the wave basin and in a beach composed by a 1:15 plane slope and a 1:30 plane slope. The generated solitary and N-waves were classified according to their Stokes number. Experimental free surface elevation, run-in, run-up and pressure measurements were retrieved from the physical experiments. Run-in, run-up and pressure laws were proposed for solitary waves and N-waves respectively. The experimental measurements were compared with numerical simulation results. The objectives of the development of the fully combined tsunami model were (1) to join the advantages of the individual models in a single one, attempting to increase the accuracy, efficiency and regime of validity, and (2) to bring a contribution in the tackling of some of the existing problems and challenges of tsunami science, such as the frequency dispersion in long distance tsunami propagation, the complex tsunami on land propagation and fluid flow interactions with river courses and with the coastal and urban areas. The fully combined tsunami model CM simulation results for a Mω 8.5 Earthquake and Tsunami hitting the Portuguese coast showed the ability of the combined model to cover all the tsunami stages. We show that with a 2DV simulation of the CFD code for the Marina of Cascais bathymetric and topographic profile it was possible to observe the vortices behind the breakwater. The analysis of the free surface elevation, velocities and pressure of the tsunami waves was performed. This allowed us to understand the consequence of three diferent tsunami waves scenarios after the breakwater zone. It was possible to draw some brief conclusions considering the tsunami impact. The fully combined tsunami model achieved in this work is a novelty, since it is composed by a sequence of distinct numerical models, including the three-dimensional component granted by the CFD code. With this combined model, it is possible to perform the simulation of real case tsunami events and hypothetical scenarios, applying real or synthetic tsunami-type wave profiles, studying and researching the impact and the tsunami interaction with the coastal areas.
Main Authors:Lima, Vânia
Subject:modelo de tsunami totalmente combinado ondas solitárias e ondas N GeoClaw FUNWAVE-TVD OpenFOAM – olaFlow fully combined tsunami model solitary and N-waves
Year:2022
Country:Portugal
Document type:doctoral thesis
Access type:open access
Associated institution:Universidade de Lisboa
Language:English
Origin:Repositório da Universidade de Lisboa
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author Lima, Vânia
author_facet Lima, Vânia
author_role author
contributor_name_str_mv Baptista, Maria Ana de Carvalho Viana
Valente, Paulo Alexandre de Avilez Rodrigues de Almeida
Miranda, Jorge Miguel Alberto de
Repositório Científico de Acesso Aberto da ULisboa
country_str PT
creators_json_txt [{\"Person.name\":\"Lima, Vânia\",\"Person.identifier.cienciaID\":\"411C-292C-8688\",\"Person.identifier.orcid\":\"0000-0003-2653-2649\",\"Person.identifier.scopusAuthorID\":\"55360847600\"}]
datacite.contributors.contributor.contributorName.fl_str_mv Baptista, Maria Ana de Carvalho Viana
Valente, Paulo Alexandre de Avilez Rodrigues de Almeida
Miranda, Jorge Miguel Alberto de
Repositório Científico de Acesso Aberto da ULisboa
datacite.creators.creator.creatorName.fl_str_mv Lima, Vânia
datacite.date.Accepted.fl_str_mv 2022-04-01T00:00:00Z
datacite.date.available.fl_str_mv 2023-01-03T16:36:45Z
datacite.date.embargoed.fl_str_mv 2023-01-03T16:36:45Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv modelo de tsunami totalmente combinado
ondas solitárias e ondas N
GeoClaw
FUNWAVE-TVD
OpenFOAM – olaFlow
fully combined tsunami model
solitary and N-waves
datacite.titles.title.fl_str_mv A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
dc.contributor.none.fl_str_mv Baptista, Maria Ana de Carvalho Viana
Valente, Paulo Alexandre de Avilez Rodrigues de Almeida
Miranda, Jorge Miguel Alberto de
Repositório Científico de Acesso Aberto da ULisboa
dc.creator.none.fl_str_mv Lima, Vânia
dc.date.Accepted.fl_str_mv 2022-04-01T00:00:00Z
dc.date.available.fl_str_mv 2023-01-03T16:36:45Z
dc.date.embargoed.fl_str_mv 2023-01-03T16:36:45Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://hdl.handle.net/10451/55610
dc.language.none.fl_str_mv eng
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.subject.none.fl_str_mv modelo de tsunami totalmente combinado
ondas solitárias e ondas N
GeoClaw
FUNWAVE-TVD
OpenFOAM – olaFlow
fully combined tsunami model
solitary and N-waves
dc.title.fl_str_mv A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_db06
description In this work, a fully combined tsunami model was developed, by coupling a sequence of 3 distinct numerical models, with different characteristics, for particular phases of the tsunami lifecycle. The computational codes that compose the fully combined tsunami model are the GeoClaw code, the FUNWAVE-TVD code and the OpenFOAM code, via the olaFlow solver. The coupling of GeoClaw with FUNWAVE-TVD was designated as the combined model 1 (CM1) and the combination of FUNWAVE-TVD/CM1 with the CFD code was designated as the combined model 2 (CM2). The full combination of both CM1 and CM2 resulted in the fully combined tsunami model CM. To achieve the coupling between numerical models, individual coupling methodologies were approached, tested and analysed. For the CM1, we choose a refined covered gauge domain coupling methodology and for the CM2 a timeSeries condition coupling methodology was used, which applied waveType wavemaker and the waveTheory tveta, from the olaFlow module. The validation of the individual numerical codes and of the combined model patches was performed with both numerical and physical test cases. Several physical experiments were carried out to generate both solitary and N-waves and a novel first-order theoretical formulation, necessary to generate N-waves experimentally, by means of a piston wave generating system, was developed and detailed in this work. The large-scale physical experiments were performed in the wave basin and in a beach composed by a 1:15 plane slope and a 1:30 plane slope. The generated solitary and N-waves were classified according to their Stokes number. Experimental free surface elevation, run-in, run-up and pressure measurements were retrieved from the physical experiments. Run-in, run-up and pressure laws were proposed for solitary waves and N-waves respectively. The experimental measurements were compared with numerical simulation results. The objectives of the development of the fully combined tsunami model were (1) to join the advantages of the individual models in a single one, attempting to increase the accuracy, efficiency and regime of validity, and (2) to bring a contribution in the tackling of some of the existing problems and challenges of tsunami science, such as the frequency dispersion in long distance tsunami propagation, the complex tsunami on land propagation and fluid flow interactions with river courses and with the coastal and urban areas. The fully combined tsunami model CM simulation results for a Mω 8.5 Earthquake and Tsunami hitting the Portuguese coast showed the ability of the combined model to cover all the tsunami stages. We show that with a 2DV simulation of the CFD code for the Marina of Cascais bathymetric and topographic profile it was possible to observe the vortices behind the breakwater. The analysis of the free surface elevation, velocities and pressure of the tsunami waves was performed. This allowed us to understand the consequence of three diferent tsunami waves scenarios after the breakwater zone. It was possible to draw some brief conclusions considering the tsunami impact. The fully combined tsunami model achieved in this work is a novelty, since it is composed by a sequence of distinct numerical models, including the three-dimensional component granted by the CFD code. With this combined model, it is possible to perform the simulation of real case tsunami events and hypothetical scenarios, applying real or synthetic tsunami-type wave profiles, studying and researching the impact and the tsunami interaction with the coastal areas.
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funding.funder.alternateName_str_mv FCT
funding.funder.identifier_str_mv http://doi.org/10.13039/501100001871
funding.funder.name_str_mv Fundação para a Ciência e a Tecnologia
funding.identifier_str_mv SFRH/BD/96725/2013
funding_str_mv SFRH/BD/96725/2013
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person_str_mv Lima, Vânia
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spelling engpt_PTIn this work, a fully combined tsunami model was developed, by coupling a sequence of 3 distinct numerical models, with different characteristics, for particular phases of the tsunami lifecycle. The computational codes that compose the fully combined tsunami model are the GeoClaw code, the FUNWAVE-TVD code and the OpenFOAM code, via the olaFlow solver. The coupling of GeoClaw with FUNWAVE-TVD was designated as the combined model 1 (CM1) and the combination of FUNWAVE-TVD/CM1 with the CFD code was designated as the combined model 2 (CM2). The full combination of both CM1 and CM2 resulted in the fully combined tsunami model CM. To achieve the coupling between numerical models, individual coupling methodologies were approached, tested and analysed. For the CM1, we choose a refined covered gauge domain coupling methodology and for the CM2 a timeSeries condition coupling methodology was used, which applied waveType wavemaker and the waveTheory tveta, from the olaFlow module. The validation of the individual numerical codes and of the combined model patches was performed with both numerical and physical test cases. Several physical experiments were carried out to generate both solitary and N-waves and a novel first-order theoretical formulation, necessary to generate N-waves experimentally, by means of a piston wave generating system, was developed and detailed in this work. The large-scale physical experiments were performed in the wave basin and in a beach composed by a 1:15 plane slope and a 1:30 plane slope. The generated solitary and N-waves were classified according to their Stokes number. Experimental free surface elevation, run-in, run-up and pressure measurements were retrieved from the physical experiments. Run-in, run-up and pressure laws were proposed for solitary waves and N-waves respectively. The experimental measurements were compared with numerical simulation results. The objectives of the development of the fully combined tsunami model were (1) to join the advantages of the individual models in a single one, attempting to increase the accuracy, efficiency and regime of validity, and (2) to bring a contribution in the tackling of some of the existing problems and challenges of tsunami science, such as the frequency dispersion in long distance tsunami propagation, the complex tsunami on land propagation and fluid flow interactions with river courses and with the coastal and urban areas. The fully combined tsunami model CM simulation results for a Mω 8.5 Earthquake and Tsunami hitting the Portuguese coast showed the ability of the combined model to cover all the tsunami stages. We show that with a 2DV simulation of the CFD code for the Marina of Cascais bathymetric and topographic profile it was possible to observe the vortices behind the breakwater. The analysis of the free surface elevation, velocities and pressure of the tsunami waves was performed. This allowed us to understand the consequence of three diferent tsunami waves scenarios after the breakwater zone. It was possible to draw some brief conclusions considering the tsunami impact. The fully combined tsunami model achieved in this work is a novelty, since it is composed by a sequence of distinct numerical models, including the three-dimensional component granted by the CFD code. With this combined model, it is possible to perform the simulation of real case tsunami events and hypothetical scenarios, applying real or synthetic tsunami-type wave profiles, studying and researching the impact and the tsunami interaction with the coastal areas.application/pdfpt_PTA combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interactionPersonalLima, VâniaDSpacehttp://dspace.org/items/88f86ef3-6345-467e-a404-69d9e6c6e4d0DSpacehttp://dspace.org/items/88f86ef3-6345-467e-a404-69d9e6c6e4d0Veloso de Azevedo LimaVânia CristinaCiência IDhttps://www.ciencia-id.pt411C-292C-8688ORCIDhttp://orcid.org0000-0003-2653-2649Scopus Author IDhttps://www.scopus.com55360847600Baptista, Maria Ana de Carvalho VianaValente, Paulo Alexandre de Avilez Rodrigues de AlmeidaMiranda, Jorge Miguel Alberto deHostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@ulisboa.ptrepositorio@ulisboa.ptURNurn:tid:1014957732023-01-03T16:36:45Z2022-042020-072022-04-01T00:00:00ZHandlehttp://hdl.handle.net/10451/55610http://purl.org/coar/access_right/c_abf2open accessmodelo de tsunami totalmente combinadoondas solitárias e ondas NGeoClawFUNWAVE-TVDOpenFOAM – olaFlowfully combined tsunami modelsolitary and N-waves60414640 bytesFundação para a Ciência e a TecnologiaA Combined Model for Tsunami Wave Propagation, Dispersion, Breaking and Fluid-Structure Interactioninfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F96725%2F2013/PTSFRH/BD/96725/2013Crossref Funder IDhttp://doi.org/10.13039/501100001871literaturehttp://purl.org/coar/resource_type/c_db06doctoral thesishttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/d97936e8-a28f-44bb-8dcd-87562f59a126/download
spellingShingle A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
Lima, Vânia
modelo de tsunami totalmente combinado
ondas solitárias e ondas N
GeoClaw
FUNWAVE-TVD
OpenFOAM – olaFlow
fully combined tsunami model
solitary and N-waves
status SINGLETON
subject.fl_str_mv modelo de tsunami totalmente combinado
ondas solitárias e ondas N
GeoClaw
FUNWAVE-TVD
OpenFOAM – olaFlow
fully combined tsunami model
solitary and N-waves
title A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
title_full A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
title_fullStr A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
title_full_unstemmed A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
title_short A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
title_sort A combined model for tsunami wave propagation, dispersion, breaking and fluid-structure interaction
topic modelo de tsunami totalmente combinado
ondas solitárias e ondas N
GeoClaw
FUNWAVE-TVD
OpenFOAM – olaFlow
fully combined tsunami model
solitary and N-waves
topic_facet modelo de tsunami totalmente combinado
ondas solitárias e ondas N
GeoClaw
FUNWAVE-TVD
OpenFOAM – olaFlow
fully combined tsunami model
solitary and N-waves
url http://hdl.handle.net/10451/55610
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