Characterization of aerodynamic performance of ducted wind turbines

A numerical study

Journal article (2019)

Authors

V.V. Dighe Wind Energy - Aerospace Engineering
G.L. De Oliveira Andrade Wind Energy - Aerospace Engineering
F. Avallone Wind Energy - Aerospace Engineering
G.J.W. van Bussel Wind Energy - Aerospace Engineering
Research Group
Wind Energy (Aerospace Engineering) (TU Delft)
Copyright: © 2019 V.V. Dighe, G.L. De Oliveira Andrade, F. Avallone, G.J.W. van Bussel
DOI
help_outline
https://doi.org/10.1002/we.2388
Optimization CFD RANS Panel method Ducted wind turbines
More Info
expand_more

Published Date

2019

Language

English

Faculty

Aerospace Engineering

Department

Flow Physics and Technology

Research Group

Wind Energy

Abstract

The complex aerodynamic interactions between the rotor and the duct has to be accounted for the design of ducted wind turbines (DWTs). A numerical study to investigate the characteristics of flow around the DWT using a simplified duct–actuator disc (AD) model is carried out. Inviscid and viscous flow calculations are performed to understand the effects of the duct shape and variable AD loadings on the aerodynamic performance coefficients. The analysis shows that the overall aerodynamic performance of the DWT can be increased by increasing the duct cross-sectional camber. Finally, flow fields using viscous calculations are examined to interpret the effects of inner duct wall flow separation on the overall DWT performance.