Hydrodynamic response of three- and four-column semi-submersibles supporting a wind turbine in regular and random waves. (26th November 2021)

• Record Type: Journal Article
• Authors: Rajeswari, K.; Nallayarasu, S.
• Is Part Of: Ships and offshore structures. Volume 16:Number 10(2021)
• Page Start: 1050
• Page End: 1060
• Publication Date: 2021-11-26
• Subjects: Floating wind turbine -- hydrodynamic response -- 3-C & 4-C semi-submersibles -- regular and random wave; Ships -- Periodicals; Offshore structures -- Periodicals; Marine engineering -- Periodicals; Marine engineering -- Technological innovations -- Periodicals; Ocean engineering -- Periodicals; Ocean engineering -- Technological innovations -- Periodicals; 623.8
• DOI: 10.1080/17445302.2020.1806681
• Languages: English
• ISSNs: 1744-5302

Abstract

ABSTRACT: The experimental and numerical investigations of the hydrodynamic response on 3-column and 4-column semi-submersible floaters with the same displacement, supporting a wind turbine in regular and random waves have been carried out in the present study. Experiments have been conducted in a laboratory wave flume using 1:75 scale models with the catenary mooring system. The numerical simulations have been performed for identical waves using a panel method based hydrodynamic software, Ansys-AQWA. The simulations were performed on prototype and were validated against the scaled up measurements. The simulated responses compare reasonably well with experiments. It was found that the 4-Column semi-submersible has lower hydrodynamic response and it is more suitable to support a floating wind turbine as compared to 3-column semi-submersible.