A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact
Two model for simulation of free surface flow is presented. The first model is a finite difference based potential flow model with non-linear kinematic and dynamic free surface boundary conditions. The second model is a weighted least squares based incompressible and inviscid flow model. A special f...
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American Society of Mechanical Engineers
2012
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ftdtupubl:oai:pure.atira.dk:publications/4cf6b717-b462-4ccc-8247-11c21ded81ab 2023-05-15T14:22:49+02:00 A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact Lindberg, Ole Bingham, Harry B. Engsig-Karup, Allan Peter 2012 https://orbit.dtu.dk/en/publications/4cf6b717-b462-4ccc-8247-11c21ded81ab eng eng American Society of Mechanical Engineers info:eu-repo/semantics/closedAccess Lindberg , O , Bingham , H B & Engsig-Karup , A P 2012 , A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact . in Proceedings of 31st International Conference on Ocean, Offshore and Arctic Engineering . American Society of Mechanical Engineers , 31st ASME International Conference on Ocean, Offshore and Arctic Engineering , Rio de Janeiro , Brazil , 01/07/2012 . contributionToPeriodical 2012 ftdtupubl 2022-08-14T08:13:47Z Two model for simulation of free surface flow is presented. The first model is a finite difference based potential flow model with non-linear kinematic and dynamic free surface boundary conditions. The second model is a weighted least squares based incompressible and inviscid flow model. A special feature of this model is a generalized finite point set method which is applied to the solution of the Poisson equation on an unstructured point distribution. The presented finite point set method is generalized to arbitrary order of approximation. The two models are applied to simulation of steep and overturning wave impacts on a vertical breakwater. Wave groups with five different wave heights are propagated from offshore to the vicinity of the breakwater, where the waves are steep, but still smooth and non-overturning. These waves are used as initial condition for the weighted least squares based incompressible and inviscid model and the wave impacts on the vertical breakwater are simulated in this model. The resulting maximum pressures and forces on the breakwater are relatively high when compared with other studies and this is due to the incompressible nature of the present model. Other Non-Article Part of Journal/Newspaper Arctic Technical University of Denmark: DTU Orbit Breakwater ENVELOPE(-63.233,-63.233,-64.800,-64.800) The Breakwater ENVELOPE(-36.583,-36.583,-54.200,-54.200) |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
Two model for simulation of free surface flow is presented. The first model is a finite difference based potential flow model with non-linear kinematic and dynamic free surface boundary conditions. The second model is a weighted least squares based incompressible and inviscid flow model. A special feature of this model is a generalized finite point set method which is applied to the solution of the Poisson equation on an unstructured point distribution. The presented finite point set method is generalized to arbitrary order of approximation. The two models are applied to simulation of steep and overturning wave impacts on a vertical breakwater. Wave groups with five different wave heights are propagated from offshore to the vicinity of the breakwater, where the waves are steep, but still smooth and non-overturning. These waves are used as initial condition for the weighted least squares based incompressible and inviscid model and the wave impacts on the vertical breakwater are simulated in this model. The resulting maximum pressures and forces on the breakwater are relatively high when compared with other studies and this is due to the incompressible nature of the present model. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Lindberg, Ole Bingham, Harry B. Engsig-Karup, Allan Peter |
spellingShingle |
Lindberg, Ole Bingham, Harry B. Engsig-Karup, Allan Peter A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact |
author_facet |
Lindberg, Ole Bingham, Harry B. Engsig-Karup, Allan Peter |
author_sort |
Lindberg, Ole |
title |
A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact |
title_short |
A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact |
title_full |
A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact |
title_fullStr |
A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact |
title_full_unstemmed |
A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact |
title_sort |
coupled finite difference and moving least squares simulation of violent breaking wave impact |
publisher |
American Society of Mechanical Engineers |
publishDate |
2012 |
url |
https://orbit.dtu.dk/en/publications/4cf6b717-b462-4ccc-8247-11c21ded81ab |
long_lat |
ENVELOPE(-63.233,-63.233,-64.800,-64.800) ENVELOPE(-36.583,-36.583,-54.200,-54.200) |
geographic |
Breakwater The Breakwater |
geographic_facet |
Breakwater The Breakwater |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Lindberg , O , Bingham , H B & Engsig-Karup , A P 2012 , A Coupled Finite Difference and Moving Least Squares Simulation of Violent Breaking Wave Impact . in Proceedings of 31st International Conference on Ocean, Offshore and Arctic Engineering . American Society of Mechanical Engineers , 31st ASME International Conference on Ocean, Offshore and Arctic Engineering , Rio de Janeiro , Brazil , 01/07/2012 . |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1766295346255757312 |