CUED Publications database

Modeling Clear-Water Scour around the High-Rise Structure Foundations (HRSF) of Offshore Wind Farms

Xiao, Y and Jia, H and Guan, D and Liang, D and Yuan, S and Tang, H (2021) Modeling Clear-Water Scour around the High-Rise Structure Foundations (HRSF) of Offshore Wind Farms. Journal of Coastal Research, 37. pp. 749-760. ISSN 0749-0208

Full text not available from this repository.

Abstract

The high-rise structure foundation (HRSF) has been used in building the Donghai offshore wind farm in Shanghai, China. So far, few published studies can be found on the local scour around an HRSF. This study presents the results of a physical modeling investigation of the clear-water scour around two typical HRSF models consisting of eight piles and 10 piles, respectively. In the study, the flume bed was covered with uniform noncohesive sediment and the incoming flow was steady. The effects of the alignment angle of the HRSF, water depth, and relative sediment size on the equilibrium scour depth were analyzed. Results showed that the maximum scour depth always occurred around the middle piles on the shoulders of the HRSF. The alignment angle of the HRSF had little influence on the final equilibrium scour depth. For permeable multipile foundations, the scour depth increased when the water depth increased within the range of the testing conditions, which indicates a similar trend between a multipile foundation and a monopile. An empirical formula is proposed for estimating the equilibrium scour depth.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 16 Nov 2020 23:56
Last Modified: 07 Sep 2021 02:14
DOI: 10.2112/JCOASTRES-D-20-00090.1