An overset grid approach to linear wave-structure interaction
A finite-difference based approach to wave-structure interaction is reported that employs the overset approach to grid generation. A two-dimensional code that utilizes the Overture C++ library has been developed to solve the linear radiation problem for a floating body of arbitrary form. This softwa...
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The American Society of Mechanical Engineers (ASME)
2012
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ftdtupubl:oai:pure.atira.dk:publications/c964cc36-530e-4408-9ece-c96156354947 2024-04-28T08:04:00+00:00 An overset grid approach to linear wave-structure interaction Read, Robert Bingham, Harry B. 2012 https://orbit.dtu.dk/en/publications/c964cc36-530e-4408-9ece-c96156354947 eng eng The American Society of Mechanical Engineers (ASME) https://orbit.dtu.dk/en/publications/c964cc36-530e-4408-9ece-c96156354947 info:eu-repo/semantics/closedAccess Read , R & Bingham , H B 2012 , An overset grid approach to linear wave-structure interaction . in Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering . The American Society of Mechanical Engineers (ASME) , 31st ASME International Conference on Ocean, Offshore and Arctic Engineering , Rio de Janeiro , Brazil , 01/07/2012 . OMAE2012-83568 contributionToPeriodical 2012 ftdtupubl 2024-04-03T15:08:16Z A finite-difference based approach to wave-structure interaction is reported that employs the overset approach to grid generation. A two-dimensional code that utilizes the Overture C++ library has been developed to solve the linear radiation problem for a floating body of arbitrary form. This software implementation has been validated by performing time-domain simulations to evaluate the dynamic forces applied to a half-submerged cylinder and a rectangular barge in response to a prescribed motion. A Gaussian displacement is used to introduce a range of wave frequencies, thereby allowing the measurement of the body response over the frequency range of interest. The radiation addedmass and damping coefficients of both bodies have been evaluated and compared to exact analytical solutions. The numerical and analytical results show good agreement when the modes of excitation and response are the same. The cross-coupled results are in qualitative agreement, but show some quantitative variations that may be related to slight differences in the fluid domain geometry. For both the cylinder and the barge, the effects of bottom slope on the coefficients are found to be minimal. Article in Journal/Newspaper Arctic Technical University of Denmark: DTU Orbit |
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Open Polar |
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Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
OMAE2012-83568 |
spellingShingle |
OMAE2012-83568 Read, Robert Bingham, Harry B. An overset grid approach to linear wave-structure interaction |
topic_facet |
OMAE2012-83568 |
description |
A finite-difference based approach to wave-structure interaction is reported that employs the overset approach to grid generation. A two-dimensional code that utilizes the Overture C++ library has been developed to solve the linear radiation problem for a floating body of arbitrary form. This software implementation has been validated by performing time-domain simulations to evaluate the dynamic forces applied to a half-submerged cylinder and a rectangular barge in response to a prescribed motion. A Gaussian displacement is used to introduce a range of wave frequencies, thereby allowing the measurement of the body response over the frequency range of interest. The radiation addedmass and damping coefficients of both bodies have been evaluated and compared to exact analytical solutions. The numerical and analytical results show good agreement when the modes of excitation and response are the same. The cross-coupled results are in qualitative agreement, but show some quantitative variations that may be related to slight differences in the fluid domain geometry. For both the cylinder and the barge, the effects of bottom slope on the coefficients are found to be minimal. |
format |
Article in Journal/Newspaper |
author |
Read, Robert Bingham, Harry B. |
author_facet |
Read, Robert Bingham, Harry B. |
author_sort |
Read, Robert |
title |
An overset grid approach to linear wave-structure interaction |
title_short |
An overset grid approach to linear wave-structure interaction |
title_full |
An overset grid approach to linear wave-structure interaction |
title_fullStr |
An overset grid approach to linear wave-structure interaction |
title_full_unstemmed |
An overset grid approach to linear wave-structure interaction |
title_sort |
overset grid approach to linear wave-structure interaction |
publisher |
The American Society of Mechanical Engineers (ASME) |
publishDate |
2012 |
url |
https://orbit.dtu.dk/en/publications/c964cc36-530e-4408-9ece-c96156354947 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Read , R & Bingham , H B 2012 , An overset grid approach to linear wave-structure interaction . in Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering . The American Society of Mechanical Engineers (ASME) , 31st ASME International Conference on Ocean, Offshore and Arctic Engineering , Rio de Janeiro , Brazil , 01/07/2012 . |
op_relation |
https://orbit.dtu.dk/en/publications/c964cc36-530e-4408-9ece-c96156354947 |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1797574938308116480 |