Hydronav2023
Sopot, 24-26 MAY 2023r.
DETERMINATION OF THE VORTEX WAKES BEHIND OFFSHORE WIND TURBINES
Leszek Kwapisz1, Jan Andrzej Szantyr2 ,Marek Narewski3
1, Institute of Fluid-Flow Machinery of the PAS, Poland.
(E-mail: kwapi@imp.gda.pl)
2Gdańsk University of Technology, Poland.
(E-mail:jan.szantyr@pg.edu.pl)
3Polish Register of Shipping, R&D Department, Poland.
(E-mail: marek.narewski@prs.pl))
ABSTRACT
The article presents a simplified method for determination of the vortex wakes behind wind turbines which can be used when designing the arrangement of turbines on a wind farm in terms of maximum farm efficiency.
The calculation method is based on surface distribution of vorticity on the blades of the turbines and employs a model for dissipation of the shed wake vortices, which is controlled by the assumed turbulent viscosity coefficient.
There is a discussion on the typical wake angle behind a wind turbine.
