Journal
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
Volume 96, Issue 12, Pages 2308-2326Publisher
ELSEVIER
DOI: 10.1016/j.jweia.2008.03.012
Keywords
Wind energy engineering; Computational fluid dynamics; Turbine micro-siting
Categories
Funding
- Portuguese Foundation for Science and Technology (FCT) [POCI/ENR/60965/2004]
- Fundação para a Ciência e a Tecnologia [POCI/ENR/60965/2004] Funding Source: FCT
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The current trend of increasing the electricity production from wind energy has led to the installation of wind farms in areas of greater orographic complexity, raising doubts on the use of simple, linear, mathematical models of the fluid flow equations, so common in the wind energy engineering. The present study shows how conventional techniques, linear models and cup anemometers, can be combined with flow simulation by computational fluid dynamics techniques (nonlinear models) and measurements by sonic anemometers, and discuss their relative merits in the characterisation of the wind over a coastal region-a cliff over the sea. The computational fluid dynamic techniques were particularly useful, providing a global view of the wind flow over the cliff and enabling the identification of separated flow regions. clearly unsuitable for installation of wind turbines. These locations display a pulsating flow, with periods between 1 and 7 min, in agreement with sonic anemometer measurements, and both a turbulence intensity and a gust factor well above the wind turbine design conditions. (C) 2008 Elsevier Ltd. All rights reserved.
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