Numerical simulations of the three-dimensional turbulent flow in a wind park

摘要

CFD is a promising tool for the analysis and optimization of the wind turbines positioned inside a wind park. ^In the present work, the 3D, time-averaged, steady-state, incompressible Navier-Stokes equations are solved along with the k-epsilon turbulence model. ^Wind turbines are represented by momentum sources, and a Control-Volume FEM (CVFEM) is used to solve the flow equations for the velocity components, pressure, and turbulence characteristics. ^The authors' previous works demonstrated the accuracy of this approach for single wind turbine power prediction. ^The capabilities of the proposed method to predict wind turbine wake characteristics are illustrated in this paper. ^Results for the MOD-0A wind turbine in neutral atmospheric boundary layers are presented, and a simple park composed of two turbines, one behind the other, is studied. ^Satisfactory agreement with experimental measurements is achieved, and qualitative agreement with observations is obtained for gross wake characteristics. ^(Author)