A parametric method for submerged floating tunnel cross-section design

A parametric method for submerged floating tunnel cross-section design

Zou, P. (TU Delft Hydraulic Structures and Flood Risk; CCCC SFT Technical Joint Research Team; CCCC FHDI Engineering Co)
Bricker, J.D. (TU Delft Hydraulic Structures and Flood Risk)
Uijttewaal, W.S.J. (TU Delft Environmental Fluid Mechanics)

2020

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.

Bézier curve
CFD
Cross-section
Submerged floating tunnel

http://resolver.tudelft.nl/uuid:1f279f6e-a268-469e-85c9-96682e2efe8d

International Society of Offshore and Polar Engineers (ISOPE)

2021-04-16

9781880653845

30th International Ocean and Polar Engineering Conference

30th International Ocean and Polar Engineering Conference, ISOPE 2020, 2020-10-11 → 2020-10-16, Virtual, Online

Proceedings of the International Offshore and Polar Engineering Conference, 1098-6189, 2020-October

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

conference paper

© 2020 P. Zou, J.D. Bricker, W.S.J. Uijttewaal