NUMERICAL INVESTIGATION OF WAVE FOLLOWING MECHANISM OF SHALLOW DRAFT FLOATING WIND TURBINE

Raditya Danu Riyanto, Jim M. Papadopoulos, Andrew T. Myers

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Offshore wind is a promising renewable energy source for many coastal populations, predicted to supply as much as 10% of global electricity by 2050. However, the technology has followed a cautious development path, using an onshore-style of turbine and tower, held steadily with an oil-industry type of platform. This approach has avoided major risks but is responsible for high costs, supply chain and infrastructure challenges, and relatively slow innovation due to the difficulties of offshore repair. It may now be appropriate to rethink that approach in search of lower cost and reduced infrastructure requirements. This paper presents ongoing work on a light floating turbine concept that yaws like a ship at anchor, has a shallow draft, widely spaced buoyancy, and high center of gravity (CG), and holds the rotor both upwind and downwind. Rather than seeking to minimize wave disturbances, the design aims to stiffly follow water elevation by using shallow floats designed to prevent heave amplification. Regular and irregular motions of the system are studied for various mass distributions to identify deviations from the intended wave following motion.

Original languageEnglish
Title of host publicationProceedings of the ASME 2022 4th International Offshore Wind Technical Conference, IOWTC2022
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791886618
DOIs
Publication statusPublished - 2022
EventASME 2022 4th International Offshore Wind Technical Conference, IOWTC2022 - Boston, United States
Duration: 7 Dec 20228 Dec 2022

Publication series

NameProceedings of the ASME 2022 4th International Offshore Wind Technical Conference, IOWTC2022

Conference

ConferenceASME 2022 4th International Offshore Wind Technical Conference, IOWTC2022
Country/TerritoryUnited States
CityBoston
Period7/12/228/12/22

Keywords

  • Ansys AQWA
  • RAO
  • Wave following
  • conical floats
  • heave
  • mooring compliance
  • pitch
  • shallow draft
  • surge

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