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Numerical analysis of the acceleration and wake effects resulting from changes in tidal turbine array position in a channel
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
2011 (English)Conference paper (Refereed)
Abstract [en]

The modelling of tidal turbines and the effects of tidal power extraction represents a relatively new challenge in the field of computational fluid dynamics. Many different methods of defining flow and boundary conditions have been postulated and examined to determine how accurately they replicate the many parameters associated with tidal power extraction, such as hydrodynamic changes in the surrounding flow environment. This paper outlines the results of numerical modelling analysis carried out to investigate different methods of inlet velocity definition to a circulating water channel. This work is part of a wider research programme investigating flow effects in tidal turbine arrays. Results of this numerical analysis were benchmarked against previous experimental work conducted in the University of Southampton Chilworth hydraulics laboratory. Results show that some sizeable differences exist in the results of certain methods of defining inlet velocities. However certain methods do show good correlation between numerical and experimental results. This correlation would appear to justify the use of these velocity inlet definition methods in future numerical modelling of the far field effects of tidal turbine arrays

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Engineering and Technology
URN: urn:nbn:se:uu:diva-222585OAI: oai:DiVA.org:uu-222585DiVA: diva2:711888
9th European Wave and Tidal Energy Conference
Available from: 2014-04-11 Created: 2014-04-11 Last updated: 2014-04-11

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