Numerical investigation of a submerged gravity anchor under wave loading during the lowering process

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • V. K. Vanjakula
  • F. Adam
  • C. Windt
  • N. Goseberg

Research Organisations

External Research Organisations

  • Technische Universität Braunschweig
  • GICON - Großmann Ingenieur Consult GmbH
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Details

Original languageEnglish
Title of host publicationTrends in Renewable Energies Offshore
Subtitle of host publicationProceedings of the 5th International Conference on Renewable Energies Offshore (RENEW 2022, Lisbon, Portugal, 8–10 November 2022)
EditorsC. Guedes Soares
Place of PublicationLondon
Pages459-467
Number of pages9
Edition1
ISBN (electronic)9781003360773
Publication statusPublished - 2023
Event5th International Conference on Renewable Energies Offshore, RENEW 2022 - Lisbon, Portugal
Duration: 8 Nov 202210 Nov 2022

Publication series

NameProceedings in Marine Technology and Ocean Engineering
PublisherCRC Press
Volume10

Abstract

In this study, the design of the heavy weight gravity anchor for a Tension Leg Platform system is investigated. During lowering the anchor towards the seabed, it interacts with the waves and currents. This interaction may lead to drifting/oscillation of the anchor and may induces additional tension to the lowering system, which can inflict damage to the machinery. To understand that, a numerical model is developed in the open-source CFD toolbox OpenFOAM to investigate the anchor motions. The validation of the numerical model is performed for a set of relevant test cases. After that, anchor dynamics for floating and submerged scenarios are investigated for various anchor shapes. The numerical model was able to predict the experimental results. From the anchor dynamic motion results, it is found that the streamlined shaped anchors show reduced surge motions of approximately 4 m and 50 % reduced pitch motions compared to the bluff-body shaped anchor.

ASJC Scopus subject areas

Cite this

Numerical investigation of a submerged gravity anchor under wave loading during the lowering process. / Vanjakula, V. K.; Adam, F.; Windt, C. et al.
Trends in Renewable Energies Offshore: Proceedings of the 5th International Conference on Renewable Energies Offshore (RENEW 2022, Lisbon, Portugal, 8–10 November 2022). ed. / C. Guedes Soares. 1. ed. London, 2023. p. 459-467 (Proceedings in Marine Technology and Ocean Engineering; Vol. 10).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Vanjakula, VK, Adam, F, Windt, C & Goseberg, N 2023, Numerical investigation of a submerged gravity anchor under wave loading during the lowering process. in CG Soares (ed.), Trends in Renewable Energies Offshore: Proceedings of the 5th International Conference on Renewable Energies Offshore (RENEW 2022, Lisbon, Portugal, 8–10 November 2022). 1 edn, Proceedings in Marine Technology and Ocean Engineering, vol. 10, London, pp. 459-467, 5th International Conference on Renewable Energies Offshore, RENEW 2022, Lisbon, Portugal, 8 Nov 2022.
Vanjakula, V. K., Adam, F., Windt, C., & Goseberg, N. (2023). Numerical investigation of a submerged gravity anchor under wave loading during the lowering process. In C. G. Soares (Ed.), Trends in Renewable Energies Offshore: Proceedings of the 5th International Conference on Renewable Energies Offshore (RENEW 2022, Lisbon, Portugal, 8–10 November 2022) (1 ed., pp. 459-467). (Proceedings in Marine Technology and Ocean Engineering; Vol. 10)..
Vanjakula VK, Adam F, Windt C, Goseberg N. Numerical investigation of a submerged gravity anchor under wave loading during the lowering process. In Soares CG, editor, Trends in Renewable Energies Offshore: Proceedings of the 5th International Conference on Renewable Energies Offshore (RENEW 2022, Lisbon, Portugal, 8–10 November 2022). 1 ed. London. 2023. p. 459-467. (Proceedings in Marine Technology and Ocean Engineering). Epub 2022 Nov 2.
Vanjakula, V. K. ; Adam, F. ; Windt, C. et al. / Numerical investigation of a submerged gravity anchor under wave loading during the lowering process. Trends in Renewable Energies Offshore: Proceedings of the 5th International Conference on Renewable Energies Offshore (RENEW 2022, Lisbon, Portugal, 8–10 November 2022). editor / C. Guedes Soares. 1. ed. London, 2023. pp. 459-467 (Proceedings in Marine Technology and Ocean Engineering).
Download
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