Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine
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 carrie...
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doaj-a4081cfa7fbe46fd93e9eac8099f32382020-11-25T01:19:21ZengMDPI AGWater2073-44412019-04-0111589610.3390/w11050896w11050896Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current TurbineChong Sun0Wei Haur Lam1Su Shiung Lam2Ming Dai3Gerard Hamill4State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300350, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300350, ChinaPyrolysis Technology Research Group, Eastern Corridor Renewable Energy Group (ECRE), School of Ocean Engineering, Universiti Malaysia Terengganu, Kuala Nerus 21030, MalaysiaSchool of Engineering, University of Plymouth, Plymouth PL4 8AA, UKSchool of Natural and Built Environment, Architecture, Civil & Structural Engineering and Planning, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, UKThe 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.https://www.mdpi.com/2073-4441/11/5/896seabed scourtidal current turbineocean renewable energy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chong Sun Wei Haur Lam Su Shiung Lam Ming Dai Gerard Hamill |
spellingShingle |
Chong Sun Wei Haur Lam Su Shiung Lam Ming Dai Gerard Hamill Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine Water seabed scour tidal current turbine ocean renewable energy |
author_facet |
Chong Sun Wei Haur Lam Su Shiung Lam Ming Dai Gerard Hamill |
author_sort |
Chong Sun |
title |
Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine |
title_short |
Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine |
title_full |
Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine |
title_fullStr |
Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine |
title_full_unstemmed |
Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine |
title_sort |
temporal evolution of seabed scour induced by darrieus-type tidal current turbine |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2019-04-01 |
description |
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. |
topic |
seabed scour tidal current turbine ocean renewable energy |
url |
https://www.mdpi.com/2073-4441/11/5/896 |
work_keys_str_mv |
AT chongsun temporalevolutionofseabedscourinducedbydarrieustypetidalcurrentturbine AT weihaurlam temporalevolutionofseabedscourinducedbydarrieustypetidalcurrentturbine AT sushiunglam temporalevolutionofseabedscourinducedbydarrieustypetidalcurrentturbine AT mingdai temporalevolutionofseabedscourinducedbydarrieustypetidalcurrentturbine AT gerardhamill temporalevolutionofseabedscourinducedbydarrieustypetidalcurrentturbine |
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1725138736091496448 |