Response force due to breaking waves - An application of FE-analysis on coastal structures
(2025) In TVSM-5000 VSMM01 20251Structural Mechanics
Department of Construction Sciences
- Abstract
- The aim of this masters dissertation is to investigate how problems that includes fluids can be solved numerical through FE-analysis. The problem at hand is to predict the impact force implied by breaking ocean waves on vertical coastal structures.
The importance that coastal areas has on human society both from a perspective of economy, infrastructure and recreation are indubitable. Furthermore, roughly 40 % of the human population do live within these areas which in combination with an expectation of more extreme weather events in the years to come implies that much can be at risk. In order to protect these areas, coastal management is assumed to be more prioritized in the future both from a perspective of increased energy expected in... (More) - The aim of this masters dissertation is to investigate how problems that includes fluids can be solved numerical through FE-analysis. The problem at hand is to predict the impact force implied by breaking ocean waves on vertical coastal structures.
The importance that coastal areas has on human society both from a perspective of economy, infrastructure and recreation are indubitable. Furthermore, roughly 40 % of the human population do live within these areas which in combination with an expectation of more extreme weather events in the years to come implies that much can be at risk. In order to protect these areas, coastal management is assumed to be more prioritized in the future both from a perspective of increased energy expected in incident waves and an increased sea water level.
Through a parametric study on very simple models analysed through Coupled Eulerian Lagranian, CEL will be performed in the FE-program Abaqus. The method utilizes various mesh properties based on Eulerian and Lagrangian theory in order to efficiently solve for instance fluid problems. The intention of this is to predict the impact force from incident waves on vertical coastal walls. The obtained result will eventually determine what input parameters will be assigned to a more complex model whose response will be treated in a conclusive part of the study.
Considerable efforts have been invested during the last century by multiple institutions and scholars trying to derive a reliable prediction method of breaking ocean waves. Based on the work of a few more resent among these studies, the results from the numerical solutions within the work of this dissertation will be compared for validation.
The results from this comparison indicates that the applied method of the study yields roughly the same results as the analytical prediction formulas but slightly higher. For applications like this may thus a CEL-analysis be a valuable resource. However, despite the numerical solution is solved explicitly it requires considerable computational resources so other methods could possibly still be preferable. (Less) - Popular Abstract (Swedish)
- I takt med ett mer extremt klimat till följd av global uppvärmning förväntas kusterna världen över bli allt mer utsatta då stormars frekvens och intensitet beräknas öka. För att kustnära infrastruktur och personlig egendom ska kunna stå emot dessa intensifierade belastningar behöver stora delar av världens kustskydd rustas upp. För att tillämpa adekvat dimensionering av dessa faciliteter behöver krafterna från morgondagens stormar uppskattas. Med traditionella metoder, härledda genom analytisk datainsamling av vågbeteenden har detta visat sig vara mycket svårt att genomföra på ett tillfredsställande sätt. Olika typer av datorsimuleringar behövs istället för detta ändamål.
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9213134
- author
- Hallbeck, Viktor LU
- supervisor
-
- Kent Persson LU
- Magnus Larson LU
- organization
- alternative title
- Responskraft från brytande havsvågor – en tillämpning av FE-analys på kustnära konstruktioner
- course
- VSMM01 20251
- year
- 2025
- type
- H3 - Professional qualifications (4 Years - )
- subject
- publication/series
- TVSM-5000
- report number
- TVSM-5277
- ISSN
- 0281-6679
- language
- English
- id
- 9213134
- alternative location
- https://www.byggmek.lth.se/english/publications/tvsm-5000-present-2014/
- date added to LUP
- 2025-10-03 10:21:39
- date last changed
- 2025-10-03 10:21:39
@misc{9213134,
abstract = {{The aim of this masters dissertation is to investigate how problems that includes fluids can be solved numerical through FE-analysis. The problem at hand is to predict the impact force implied by breaking ocean waves on vertical coastal structures.
The importance that coastal areas has on human society both from a perspective of economy, infrastructure and recreation are indubitable. Furthermore, roughly 40 % of the human population do live within these areas which in combination with an expectation of more extreme weather events in the years to come implies that much can be at risk. In order to protect these areas, coastal management is assumed to be more prioritized in the future both from a perspective of increased energy expected in incident waves and an increased sea water level.
Through a parametric study on very simple models analysed through Coupled Eulerian Lagranian, CEL will be performed in the FE-program Abaqus. The method utilizes various mesh properties based on Eulerian and Lagrangian theory in order to efficiently solve for instance fluid problems. The intention of this is to predict the impact force from incident waves on vertical coastal walls. The obtained result will eventually determine what input parameters will be assigned to a more complex model whose response will be treated in a conclusive part of the study.
Considerable efforts have been invested during the last century by multiple institutions and scholars trying to derive a reliable prediction method of breaking ocean waves. Based on the work of a few more resent among these studies, the results from the numerical solutions within the work of this dissertation will be compared for validation.
The results from this comparison indicates that the applied method of the study yields roughly the same results as the analytical prediction formulas but slightly higher. For applications like this may thus a CEL-analysis be a valuable resource. However, despite the numerical solution is solved explicitly it requires considerable computational resources so other methods could possibly still be preferable.}},
author = {{Hallbeck, Viktor}},
issn = {{0281-6679}},
language = {{eng}},
note = {{Student Paper}},
series = {{TVSM-5000}},
title = {{Response force due to breaking waves - An application of FE-analysis on coastal structures}},
year = {{2025}},
}