ORCID Profile
0000-0001-7141-3994
Current Organisation
The University of Auckland
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Elsevier BV
Date: 03-2021
Publisher: Elsevier BV
Date: 09-2008
Publisher: Elsevier BV
Date: 11-2018
Publisher: IOP Publishing
Date: 21-09-2018
Publisher: Elsevier BV
Date: 07-2011
Publisher: The Royal Society
Date: 28-02-2013
Abstract: This paper analyses a set of velocity time histories which were obtained at a fixed point in the bottom boundary layer of a tidal stream, 5 m from the seabed, and where the mean flow reached 2.5 m s −1 . Considering two complete tidal cycles near spring tide, the streamwise turbulence intensity during non-slack flow was found to be approximately 12–13%, varying slightly between flood and ebb tides. The ratio of the streamwise turbulence intensity to that of the transverse and vertical intensities is typically 1 : 0.75 : 0.56, respectively. Velocity autospectra computed near maximum flood tidal flow conditions exhibit an f −2/3 inertial subrange and conform reasonably well to atmospheric turbulence spectral models. Local isotropy is observed between the streamwise and transverse spectra at reduced frequencies of f .5. The streamwise integral time scales and length scales of turbulence at maximum flow are approximately 6 s and 11–14 m, respectively, and exhibit a relatively large degree of scatter. They are also typically much greater in magnitude than the transverse and vertical components. The findings are intended to increase the levels of confidence within the tidal energy industry of the characteristics of the higher frequency components of the onset flow, and subsequently lead to more realistic performance and loading predictions.
Publisher: Elsevier BV
Date: 06-2006
Publisher: Elsevier BV
Date: 04-2008
Publisher: Springer Science and Business Media LLC
Date: 14-12-2016
Publisher: Elsevier BV
Date: 02-2007
Publisher: IEEE
Date: 05-2010
Publisher: Elsevier BV
Date: 10-2019
Publisher: Elsevier BV
Date: 09-2021
No related grants have been discovered for Simon Bickerton.