KARA, Fuat (2019). Maximise absorbed wave power with wave energy converter arrays in time domain. In: International Offshore and Polar Engineering Conference (ISOPE),, Honolulu, USA, 16-21 Jun 2019. ISOPE. (Unpublished) [Conference or Workshop Item]
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ISOPE - 2019.pdf - Submitted Version
Available under License All rights reserved.
ISOPE - 2019.pdf - Submitted Version
Available under License All rights reserved.
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Abstract
A three-dimensional transient numerical code ITU-WAVE based on potential theory and NeumannKelvin approximation is extended to take into account wave interaction in an array system using two
and four truncated vertical cylinder arrays. ITU-WAVE panel code is validated against analytical results
before applied to power absorption from ocean waves for different array configurations. The effects of
the separation distances between array system and heading angles on energy absorption in both sway
and heave modes are studied by the support of numerical simulations which show more power
absorbed in sway mode than in heave mode and sway mode has wider bandwidth than heave mode for
energy absorption. It is also shown wave interactions are stronger when the array systems are close and
these wave interactions are reduced significantly and shifted to larger times when the separation
distance is increased. The wave interaction is much stronger at the same separation distance and
heading angle in heave mode than in sway mode. Numerical experience shows that more power is
absorbed in sway mode than heave mode in both two and four array systems at any separation
distances and heading angles when the bodies in array system have the same displacement in both sway
and heave modes
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