TY - JOUR
T1 - Experimental characterisation of the wake behind paired vertical-axis wind turbines
AU - Vergaerde, Antoine
AU - De Troyer, Tim
AU - Muggiasca, Sara
AU - Bayati, Ilmas
AU - Belloli, Marco
AU - Kluczewska-Bordier, Joanna
AU - Parneix, Nicolas
AU - Silvert, Frederic
AU - Runacres, Mark C.
PY - 2020/11
Y1 - 2020/11
N2 - Two vertical-axis wind turbines (VAWTs) benefit from a power increase when placed side by side in close proximity. To study the potential of paired VAWTs for integration in wind farms, wind tunnel wake measurements of lift-driven VAWTs are compared for isolated and three counter-rotating configurations. Because the wake of an isolated VAWT is deflected, the direction of rotation significantly influences the wake of paired VAWTs. The wake of counter-rotating VAWTs where the adjacent blades move downwind, exhibits a similar length, width and replenishment as the wake of an isolated VAWT. The wake of counter-rotating VAWTs with adjacent upwind moving blades, however, significantly differs from an isolated VAWT wake. While its wake length is similar to an isolated VAWT wake, its width and replenishment are not. Because of appealing wake characteristics, paired VAWTs exhibit unique advantages for wind farm applications, and especially for offshore floating wind farms.
AB - Two vertical-axis wind turbines (VAWTs) benefit from a power increase when placed side by side in close proximity. To study the potential of paired VAWTs for integration in wind farms, wind tunnel wake measurements of lift-driven VAWTs are compared for isolated and three counter-rotating configurations. Because the wake of an isolated VAWT is deflected, the direction of rotation significantly influences the wake of paired VAWTs. The wake of counter-rotating VAWTs where the adjacent blades move downwind, exhibits a similar length, width and replenishment as the wake of an isolated VAWT. The wake of counter-rotating VAWTs with adjacent upwind moving blades, however, significantly differs from an isolated VAWT wake. While its wake length is similar to an isolated VAWT wake, its width and replenishment are not. Because of appealing wake characteristics, paired VAWTs exhibit unique advantages for wind farm applications, and especially for offshore floating wind farms.
KW - wake
KW - Vertical-axis wind turbine
KW - Wind tunnel
KW - Experimental
KW - Wind turbine applications
KW - Paired wind turbines
U2 - 10.1016/j.jweia.2020.104353
DO - 10.1016/j.jweia.2020.104353
M3 - Article
VL - 206
JO - Journal of Wind Engineering & Industrial Aerodynamics
JF - Journal of Wind Engineering & Industrial Aerodynamics
SN - 0167-6105
M1 - 104353
ER -