Application of a boundary element method for wave-body interaction problems considering the non-linear water surface
In this paper an existing time domain panel method, which was originally developed for propeller flow simulations, is extended by implementing the mixed Eulerian-Lagrangian approach for the computation of the non-linear free water surface. The three-dimensional panel method uses a constant source an...
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fttuhamburg:oai:tore.tuhh.de:11420/3439 2023-08-20T04:02:43+02:00 Application of a boundary element method for wave-body interaction problems considering the non-linear water surface Ferreira Gonzales, Daniel Bechthold, Jonas Abdel-Maksoud, Moustafa 2017-09-25 http://hdl.handle.net/11420/3439 en eng The American Society of Mechanical Engineers Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 978-0-7918-5773-1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE (7A-2017): (2017) http://hdl.handle.net/11420/3439 2-s2.0-85032037247 600: Technik 600 Conference Paper Other 2017 fttuhamburg 2023-07-28T09:22:11Z In this paper an existing time domain panel method, which was originally developed for propeller flow simulations, is extended by implementing the mixed Eulerian-Lagrangian approach for the computation of the non-linear free water surface. The three-dimensional panel method uses a constant source and doublet density distribution on each panel and a Dirichlet boundary condition to solve the velocity potential in every time step. Additionally, a formulation for the acceleration potential is included in order to determine the hydrodynamic forces accurately. The paper gives an overview on the governing equations and introduces the numerical approach. Validation results of the developed method are presented for the wave resistance of a submerged spheroid and a wigley hull. Additionally, the wave diffraction due to a surface piercing cylinder in regular waves is validated regarding the forces and the water surface elevation around the body. Here, the computations are compared with other numerical methods as well as tank test results. Apart from this, the paper deals with an application example showing simulations of an artificial service vessel catamaran in waves. The forces on the hull with and without forward speed are presented. The paper concludes with a discussion of the presented results and a brief outlook on further work. Conference Object Arctic TUHH Open Research (TORE - Technische Universität Hamburg) Volume 7A: Ocean Engineering |
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Open Polar |
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TUHH Open Research (TORE - Technische Universität Hamburg) |
op_collection_id |
fttuhamburg |
language |
English |
topic |
600: Technik 600 |
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600: Technik 600 Ferreira Gonzales, Daniel Bechthold, Jonas Abdel-Maksoud, Moustafa Application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
topic_facet |
600: Technik 600 |
description |
In this paper an existing time domain panel method, which was originally developed for propeller flow simulations, is extended by implementing the mixed Eulerian-Lagrangian approach for the computation of the non-linear free water surface. The three-dimensional panel method uses a constant source and doublet density distribution on each panel and a Dirichlet boundary condition to solve the velocity potential in every time step. Additionally, a formulation for the acceleration potential is included in order to determine the hydrodynamic forces accurately. The paper gives an overview on the governing equations and introduces the numerical approach. Validation results of the developed method are presented for the wave resistance of a submerged spheroid and a wigley hull. Additionally, the wave diffraction due to a surface piercing cylinder in regular waves is validated regarding the forces and the water surface elevation around the body. Here, the computations are compared with other numerical methods as well as tank test results. Apart from this, the paper deals with an application example showing simulations of an artificial service vessel catamaran in waves. The forces on the hull with and without forward speed are presented. The paper concludes with a discussion of the presented results and a brief outlook on further work. |
format |
Conference Object |
author |
Ferreira Gonzales, Daniel Bechthold, Jonas Abdel-Maksoud, Moustafa |
author_facet |
Ferreira Gonzales, Daniel Bechthold, Jonas Abdel-Maksoud, Moustafa |
author_sort |
Ferreira Gonzales, Daniel |
title |
Application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
title_short |
Application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
title_full |
Application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
title_fullStr |
Application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
title_full_unstemmed |
Application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
title_sort |
application of a boundary element method for wave-body interaction problems considering the non-linear water surface |
publisher |
The American Society of Mechanical Engineers |
publishDate |
2017 |
url |
http://hdl.handle.net/11420/3439 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 978-0-7918-5773-1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE (7A-2017): (2017) http://hdl.handle.net/11420/3439 2-s2.0-85032037247 |
container_title |
Volume 7A: Ocean Engineering |
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1774713315977592832 |