Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack
Drilling riser systems are subjected to hydrodynamic loads from vessel motions, waves, steady currents and vortex-induced motions. This necessitates a proper structural analysis during the design phase using techniques such as finite element analysis (FEA). Common approaches within the FEA packages...
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ftmit:oai:dspace.mit.edu:1721.1/108384 2023-06-11T04:07:31+02:00 Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack Venuturumilli, Raj Tognarelli, Michael Khanna, Samir Triantafyllou, Michael S Massachusetts Institute of Technology. Department of Mechanical Engineering Triantafyllou, Michael S 2015-06 application/pdf http://hdl.handle.net/1721.1/108384 en_US eng American Society of Mechanical Engineers (ASME) http://dx.doi.org/10.1115/OMAE2015-41198 Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering 978-0-7918-5648-2 http://hdl.handle.net/1721.1/108384 Venuturumilli, Raj et al. “Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack.” ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, May 31–June 5, 2015, St. John’s, Newfoundland, Canada, ASME, 2015. © 2015 by ASME orcid:0000-0002-4960-7060 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Society of Mechanical Engineers (ASME) Article http://purl.org/eprint/type/ConferencePaper 2015 ftmit https://doi.org/10.1115/OMAE2015-41198 2023-05-29T08:19:38Z Drilling riser systems are subjected to hydrodynamic loads from vessel motions, waves, steady currents and vortex-induced motions. This necessitates a proper structural analysis during the design phase using techniques such as finite element analysis (FEA). Common approaches within the FEA packages approximate the individual components including BOP/LMRP (Blow-Out Preventer/Lower Marine Riser Package), subsea tree and wellhead using 2D or 3D beam/pipe elements with approximated effective mass and damping coefficients. Predicted system response can be very sensitive to the mass, hydrodynamic added mass and drag of the large LMRP/BOP/Tree components above the wellhead. In the past, gross conservative estimates on the hydrodynamic coefficients were made and despite this, design criteria were generally met. With the advent of large sixth-generation BOP stacks with the possibility of additional capping stacks, such approximations are no longer acceptable. Therefore, the possibility of relying on the more detailed capability of computational fluid-structure interaction (FSI) analysis for a better calculation of these coefficients is investigated. In this paper, we describe a detailed model developed for a 38:1 scaled down BOP and discuss the subsequent predictions of the hydrodynamic coefficients. The model output is compared against the data from the concurrent tests conducted in an experimental tow tank. The comparison demonstrates that computational FSI can be an effective and accurate tool for calculating the hydrodynamic coefficients of complex structures like BOPs. Article in Journal/Newspaper Arctic DSpace@MIT (Massachusetts Institute of Technology) Volume 2: CFD and VIV |
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Open Polar |
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DSpace@MIT (Massachusetts Institute of Technology) |
op_collection_id |
ftmit |
language |
English |
description |
Drilling riser systems are subjected to hydrodynamic loads from vessel motions, waves, steady currents and vortex-induced motions. This necessitates a proper structural analysis during the design phase using techniques such as finite element analysis (FEA). Common approaches within the FEA packages approximate the individual components including BOP/LMRP (Blow-Out Preventer/Lower Marine Riser Package), subsea tree and wellhead using 2D or 3D beam/pipe elements with approximated effective mass and damping coefficients. Predicted system response can be very sensitive to the mass, hydrodynamic added mass and drag of the large LMRP/BOP/Tree components above the wellhead. In the past, gross conservative estimates on the hydrodynamic coefficients were made and despite this, design criteria were generally met. With the advent of large sixth-generation BOP stacks with the possibility of additional capping stacks, such approximations are no longer acceptable. Therefore, the possibility of relying on the more detailed capability of computational fluid-structure interaction (FSI) analysis for a better calculation of these coefficients is investigated. In this paper, we describe a detailed model developed for a 38:1 scaled down BOP and discuss the subsequent predictions of the hydrodynamic coefficients. The model output is compared against the data from the concurrent tests conducted in an experimental tow tank. The comparison demonstrates that computational FSI can be an effective and accurate tool for calculating the hydrodynamic coefficients of complex structures like BOPs. |
author2 |
Massachusetts Institute of Technology. Department of Mechanical Engineering Triantafyllou, Michael S |
format |
Article in Journal/Newspaper |
author |
Venuturumilli, Raj Tognarelli, Michael Khanna, Samir Triantafyllou, Michael S |
spellingShingle |
Venuturumilli, Raj Tognarelli, Michael Khanna, Samir Triantafyllou, Michael S Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack |
author_facet |
Venuturumilli, Raj Tognarelli, Michael Khanna, Samir Triantafyllou, Michael S |
author_sort |
Venuturumilli, Raj |
title |
Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack |
title_short |
Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack |
title_full |
Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack |
title_fullStr |
Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack |
title_full_unstemmed |
Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack |
title_sort |
validation of computational fluid-structure interaction analysis methods to determine hydrodynamic coefficients of a bop stack |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2015 |
url |
http://hdl.handle.net/1721.1/108384 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
American Society of Mechanical Engineers (ASME) |
op_relation |
http://dx.doi.org/10.1115/OMAE2015-41198 Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering 978-0-7918-5648-2 http://hdl.handle.net/1721.1/108384 Venuturumilli, Raj et al. “Validation of Computational Fluid-Structure Interaction Analysis Methods to Determine Hydrodynamic Coefficients of a BOP Stack.” ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, May 31–June 5, 2015, St. John’s, Newfoundland, Canada, ASME, 2015. © 2015 by ASME orcid:0000-0002-4960-7060 |
op_rights |
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
op_doi |
https://doi.org/10.1115/OMAE2015-41198 |
container_title |
Volume 2: CFD and VIV |
_version_ |
1768380686982447104 |