TY - JOUR
T1 - Large scale experimental study of the scour protection damage around a monopile foundation under combined wave and current conditions
AU - Wu, Minghao
AU - De Vos, Leen
AU - Chavez, Carlos Emilio Arboleda
AU - Stratigaki, Vasiliki
AU - Fazeres-Ferradosa, Tiago
AU - Rosa-Santos, Paulo
AU - Taveira-Pinto, Francisco
AU - Troch, Peter
N1 - Funding Information:
Funding: This research was funded by the European Community’s Horizon 2020 Research and Innovation Program through the grant of HYDRALAB-PLUS, Contract no. 654110. The first author would like to acknowledge his funding through a Special Research Fund of UGent (BOF). The third author would like, in addition, to acknowledge his FWO (Research Foundation-Flanders, project number 3G052716). funding. FEUP team was supported by the project POCI-01-0145-FEDER-032170 (ORACLE project), funded by the European Fund for Regional Development (FEDER), through the COMPETE2020, the Programa Operacional Competitividade e Internacionalização (POCI) and FCT/MCTES through national funds (PIDDAC).
Funding Information:
This research was funded by the European Community's Horizon 2020 Research and Innovation Program through the grant of HYDRALAB-PLUS, Contract no. 654110. The first author would like to acknowledge his funding through a Special Research Fund of UGent (BOF). The third author would like, in addition, to acknowledge his FWO (Research Foundation-Flanders, project number 3G052716). funding. FEUP team was supported by the project POCI-01-0145-FEDER-032170 (ORACLE project), funded by the European Fund for Regional Development (FEDER), through the COMPETE2020, the Programa Operacional Competitividade e Internacionaliza??o (POCI) and FCT/MCTES through national funds (PIDDAC). The authors thank all partners and team members of the PROTEUS project, Ghent University, IMDC, HRWallingford, University of Porto, Leibniz University Hannover and MOW Vlaanderen.
Publisher Copyright:
© 2020 by the authors.
PY - 2020/6
Y1 - 2020/6
N2 - This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obtained from these large-scale models with existing monopile scour protection design approaches, which were proposed based on small scale wave flume experiments, and to study the applicability of the existing approaches. The static stability (onset of motion and bed shear stress) and the dynamic stability (three-dimensional damage numbers) of the scour protection are investigated. Both results show that the existing design approaches can be conservative when applied to large scale models, which highlights the need of further investigations on scale and model effects. In addition, this paper also analyses the scour protection damage depth. It is observed that damage depths of the scour protection layer under low Keulegan-Carpenter number (KC) conditions are smaller than predictions. The study provides valuable large scale experimental data for future research on the monopile scour protection design.
AB - This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obtained from these large-scale models with existing monopile scour protection design approaches, which were proposed based on small scale wave flume experiments, and to study the applicability of the existing approaches. The static stability (onset of motion and bed shear stress) and the dynamic stability (three-dimensional damage numbers) of the scour protection are investigated. Both results show that the existing design approaches can be conservative when applied to large scale models, which highlights the need of further investigations on scale and model effects. In addition, this paper also analyses the scour protection damage depth. It is observed that damage depths of the scour protection layer under low Keulegan-Carpenter number (KC) conditions are smaller than predictions. The study provides valuable large scale experimental data for future research on the monopile scour protection design.
KW - Bed shear stress
KW - Damage depth
KW - Large scale experiment
KW - Monopile
KW - Offshore wind turbine
KW - Scour protection design
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U2 - 10.3390/JMSE8060417
DO - 10.3390/JMSE8060417
M3 - Article
AN - SCOPUS:85089023891
VL - 8
JO - Journal of Marine Science and Engineering
JF - Journal of Marine Science and Engineering
SN - 2077-1312
IS - 6
M1 - 417
ER -