Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
A REVIEW OF WIND TURBINE WAKE MODELS FOR WIND PARK OPTIMIZATION
Submission Author:
Antonio Neiva , RJ
Co-Authors:
Antonio Neiva, Vanessa Guedes, Caio Leandro Suzano Massa, Daniel Davy Bello de Freitas
Presenter: Caio Leandro Suzano Massa
doi://10.26678/ABCM.COBEM2019.COB2019-1109
Abstract
The energy production of a wind park is strongly affected by the turbine wakes, which may reduce up to 20% of the power output due to velocity deficit and turbulence. Two problems on physics dynamics, atmospheric turbulence and airfoil flow, must be handled by the wake model so the energy production forecast has enough precision as required by financial institutions. The computational cost and the precision of the available models are inversely related, many choices are available and there is a vast opportunity for improvement in ongoing research. In this paper we review seven wake models, three commercial software available on the market that use the turbine wake models, and two open source tools developed in NREL (National Renewable Energy Laboratory (NREL): FLORIS (FLOw Redirection and Induction in Steady state) and SOWFA (Simulator fOr Wind Farm Applications), with different physical approaches that can be used to better understand the complex flow around the turbine and in a wind park. Floris uses kinetic based models to predict wind flow and it can quickly calculate and simulate a great range of parameters, while SOWFA uses complex CFD (Computer Fluid Dynamics) schemes.
Keywords
Aerodynamics, Wind farms, wake effect, mathematical model
