Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine

Chong Sun; Wei Haur Lam; Su Shiung Lam; Ming Dai; Gerard Hamill

doi:10.3390/w11050896

Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine

Chong Sun, Wei Haur Lam^*, Su Shiung Lam, Ming Dai, Gerard Hamill

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

25 Downloads (Pure)

Abstract

The temporal evolution of seabed scour was investigated to prevent damage around a monopile foundation for Darrieus-type tidal current turbine. Temporal scour depths and profiles at various turbine radius and tip clearances were studied by using the experimental measurements. Experiments were carried out in a purpose-built recirculating water flume associated with 3D printed turbines. The scour hole was developed rapidly in the initial process and grew gradually. The ultimate equilibrium of scour hole was reached after 180 min. The scour speed increased with the existence of a rotating turbine on top of the monopile. The findings suggested that monopile foundation and the rotating turbine are two significant considerations for the temporal evolution of scour. The scour depth is inversely correlated to the tip-bed clearance between the turbine and seabed. Empirical equations were proposed to predict the temporal scour depth around turbine. These equations were in good agreement with the experimental data.

Original language	English
Article number	896
Journal	Water (Switzerland)
Volume	11
Issue number	5
Early online date	28 Apr 2019
DOIs	https://doi.org/10.3390/w11050896
Publication status	Published - 01 May 2019

Bibliographical note

Funding Information:
Funding: This research was funded by Natural Science Foundation of Tianjin City: 18JCYBJC21900 and The APC was funded by Natural Science Foundation of Tianjin City: 18JCYBJC21900.

Publisher Copyright:
© 2019 by the authors.

Keywords

Ocean renewable energy
Seabed scour
Tidal current turbine

ASJC Scopus subject areas

Biochemistry
Geography, Planning and Development
Aquatic Science
Water Science and Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/w11050896Licence: CC BY

Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine
Copyright 2021 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 3.55 MBLicence: CC BY

Cite this

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title = "Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine",

abstract = "The temporal evolution of seabed scour was investigated to prevent damage around a monopile foundation for Darrieus-type tidal current turbine. Temporal scour depths and profiles at various turbine radius and tip clearances were studied by using the experimental measurements. Experiments were carried out in a purpose-built recirculating water flume associated with 3D printed turbines. The scour hole was developed rapidly in the initial process and grew gradually. The ultimate equilibrium of scour hole was reached after 180 min. The scour speed increased with the existence of a rotating turbine on top of the monopile. The findings suggested that monopile foundation and the rotating turbine are two significant considerations for the temporal evolution of scour. The scour depth is inversely correlated to the tip-bed clearance between the turbine and seabed. Empirical equations were proposed to predict the temporal scour depth around turbine. These equations were in good agreement with the experimental data.",

keywords = "Ocean renewable energy, Seabed scour, Tidal current turbine",

author = "Chong Sun and Lam, {Wei Haur} and Lam, {Su Shiung} and Ming Dai and Gerard Hamill",

note = "Funding Information: Funding: This research was funded by Natural Science Foundation of Tianjin City: 18JCYBJC21900 and The APC was funded by Natural Science Foundation of Tianjin City: 18JCYBJC21900. Publisher Copyright: {\textcopyright} 2019 by the authors.",

year = "2019",

month = may,

day = "1",

doi = "10.3390/w11050896",

language = "English",

volume = "11",

journal = "Water",

issn = "2073-4441",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

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AU - Sun, Chong

AU - Lam, Wei Haur

AU - Lam, Su Shiung

AU - Dai, Ming

AU - Hamill, Gerard

N1 - Funding Information: Funding: This research was funded by Natural Science Foundation of Tianjin City: 18JCYBJC21900 and The APC was funded by Natural Science Foundation of Tianjin City: 18JCYBJC21900. Publisher Copyright: © 2019 by the authors.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The temporal evolution of seabed scour was investigated to prevent damage around a monopile foundation for Darrieus-type tidal current turbine. Temporal scour depths and profiles at various turbine radius and tip clearances were studied by using the experimental measurements. Experiments were carried out in a purpose-built recirculating water flume associated with 3D printed turbines. The scour hole was developed rapidly in the initial process and grew gradually. The ultimate equilibrium of scour hole was reached after 180 min. The scour speed increased with the existence of a rotating turbine on top of the monopile. The findings suggested that monopile foundation and the rotating turbine are two significant considerations for the temporal evolution of scour. The scour depth is inversely correlated to the tip-bed clearance between the turbine and seabed. Empirical equations were proposed to predict the temporal scour depth around turbine. These equations were in good agreement with the experimental data.

AB - The temporal evolution of seabed scour was investigated to prevent damage around a monopile foundation for Darrieus-type tidal current turbine. Temporal scour depths and profiles at various turbine radius and tip clearances were studied by using the experimental measurements. Experiments were carried out in a purpose-built recirculating water flume associated with 3D printed turbines. The scour hole was developed rapidly in the initial process and grew gradually. The ultimate equilibrium of scour hole was reached after 180 min. The scour speed increased with the existence of a rotating turbine on top of the monopile. The findings suggested that monopile foundation and the rotating turbine are two significant considerations for the temporal evolution of scour. The scour depth is inversely correlated to the tip-bed clearance between the turbine and seabed. Empirical equations were proposed to predict the temporal scour depth around turbine. These equations were in good agreement with the experimental data.

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KW - Tidal current turbine

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JO - Water

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SN - 2073-4441

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ER -

Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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