Open AccessCharacterization of aerodynamic performance of ducted wind turbines: A numerical study
Author(s) -
Dighe Vinit V.,
Oliveira Gael,
Avallone Francesco,
Bussel Gerard J. W.
Publication year - 2019
Publication title -
wind energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 92
eISSN - 1099-1824
pISSN - 1095-4244
DOI - 10.1002/we.2388
Subject(s) - aerodynamics , inviscid flow , duct (anatomy) , camber (aerodynamics) , mechanics , aerospace engineering , engineering , structural engineering , physics , medicine , pathology
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.