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SUMMARY:Multiple cluster scattering and other approaches for modelling and
  optimization of large wave energy parks - Malin Goteman (Uppsala Universi
 tet)
DTSTART:20230524T095000Z
DTEND:20230524T103500Z
UID:TALK198841@talks.cam.ac.uk
DESCRIPTION:Most wave energy concepts will have to be deployed in large ar
 rays to achieve a power production sufficiently large to motivate the inst
 allation and operational costs. The individual wave energy converters will
  interact by scattered and radiated waves\, which affects their dynamics a
 nd energy absorption. Much effort has been made to model arrays of wave en
 ergy converters and optimize their layout and other parameters\, using bot
 h analytical\, numerical\, and experimental tools. The complexity grows fa
 st with the number of interacting bodies\, and there has been a lack of me
 thods available to model parks of hundred devices or more. For small point
 -absorbers such as the one developed at Uppsala University\, commercial pa
 rks will consist of several hundred devices\, which motivated this work. I
 n the talk\, I will discuss several approaches that we have applied to mod
 el and optimize large wave energy parks. These include a nearest neighbour
  approach\, a multiple clustering scattering method\, and also a back-of-a
 n-envelope computation for quick estimations of the park interactions. The
 se methods share the common feature that they do not require assumptions i
 n terms of layout periodicity\, expansion in different length scales\, or 
 neglected degrees of freedom. In a realistic wave energy park\, these assu
 mptions do not hold\, and previously developed approaches are not applicab
 le. Special emphasis in the talk will be put on the clustering approach\, 
 in which the hydrodynamic interaction is computed exactly within clusters 
 exactly\, but iteratively between them. &nbsp\;The method constitutes a br
 idge between the iterative and non-iterative multiple scattering methods\,
  and enables a faster modelling of parks of many floating bodies\, to a re
 tained accuracy.
LOCATION:Seminar Room 1\, Newton Institute
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