A parametric method for submerged floating tunnel cross-section design

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Abstract

A submerged floating tunnel’s (SFT) cross-sectional geometry is one of the main factors influencing its hydrodynamic characteristics. Minimizing the drag and lift is important for reducing the displacement of the structure and load on the mooring system. In this study, a parametric cross-section design method based on the Bézier curve is used to define the geometry of the SFT cross-section. A sensitivity analysis of the Bézier curve parameters is conducted with Computational Fluid Dynamics (CFD), and compared with simpler common cross-sections. The results show the parametric design method noticeably reduces the mean drag and RMS lift coefficient, compared with simpler common sections.

Original languageEnglish
Title of host publication30th International Ocean and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers (ISOPE)
Pages961-966
Number of pages6
ISBN (Electronic)9781880653845
Publication statusPublished - 2020
Event30th International Ocean and Polar Engineering Conference, ISOPE 2020 - Virtual, Online
Duration: 11 Oct 202016 Oct 2020

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2020-October
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference30th International Ocean and Polar Engineering Conference, ISOPE 2020
CityVirtual, Online
Period11/10/2016/10/20

Keywords

  • Bézier curve
  • CFD
  • Cross-section
  • Submerged floating tunnel

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  • Cite this

    Zou, P. X., Bricker, J. D., & Uijttewaal, W. (2020). A parametric method for submerged floating tunnel cross-section design. In 30th International Ocean and Polar Engineering Conference (pp. 961-966). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2020-October). International Society of Offshore and Polar Engineers (ISOPE).