Determining Diffuser Augmented Wind Turbine performance using a combined CFD/BEM method

The Science of Making Torque from Wind

Kesby, J.E.^1 ; Bradney, D.R.^1 ; Clausen, P.D.^1

School of Engineering, Faculty of Engineering and the Built Environment, University of Newcastle, Australia^1

关键词: Blade-element theory;    Complex Processes;    Optimisations;    Power out put;    Turbine blade;    Turbine performance;    Turbine power;    Wind velocities;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/8/082033/pdf
DOI  :  10.1088/1742-6596/753/8/082033

来源: IOP

【 摘 要 】

The optimisation of a Diffuser Augmented Wind Turbine has traditionally focused on maximising its power output. Optimising the design of the blade and the shape of the diffuser for maximum turbine power over a range of wind velocities is a complex process, as each will influence the others flow regime. In this paper we propose a method that combines the predictions of flow through a diffuser, using computational fluid dynamics, and the flow from a turbine blade using a modified blade element theory to predict the power output of a diffuser augmented wind turbine. Good agreement was found between the predictions from this new method and experimental data from the literature.