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Computational aerodynamic optimisation of vertical axis wind turbine blades

Matt Kear, Ben Evans Orcid Logo, Rob Ellis, Sam Rolland Orcid Logo

Applied Mathematical Modelling, Volume: 40, Issue: 2, Pages: 1038 - 1051

Swansea University Authors: Ben Evans Orcid Logo, Sam Rolland Orcid Logo

Abstract

The approach and results of a parametric aerodynamic optimisation study is presented to develop the blade design for a novel implementation of a vertical axis wind turbine. It was applied to optimise the two-dimensional cross-sectional geometry of the blades comprising the turbine. Unsteady viscous...

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Published in: Applied Mathematical Modelling
ISSN: 0307-904X
Published: 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa22343
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Abstract: The approach and results of a parametric aerodynamic optimisation study is presented to develop the blade design for a novel implementation of a vertical axis wind turbine. It was applied to optimise the two-dimensional cross-sectional geometry of the blades comprising the turbine. Unsteady viscous computational fluid dynamic simulations were used to evaluate blade performance. To compare geometries, the non-dimensional Coefficient of Power was used as a fitness function. Moving meshes were used to study the transient nature of the physical process. A new parameterisation approach using circular arcs has been developed for the blade cross sections. The optimisation process was conducted in two stages: firstly a Design of Experiments based response surface fitting was used to explore the parametric design space followed by the use of a Nelder-Mead simplex gradient-based optimisation procedure. The outcome of the optimisation study is a new blade design that is currently being tested in full-scale concept trials by a partnering wind energy company.
Item Description: Available online 21 July 2015
College: College of Engineering
Issue: 2
Start Page: 1038
End Page: 1051