THEORETICAL CALCULATION OF THE ROTATION OF A DARRIUS WIND TURBINE USING FLOW TUBE THEORY
Keywords:
Darrieus wind turbine, H-rotor, current tube, induced velocity, angle of attack, torque, iterative algorithmAbstract
Using a single-tube model, an iterative algorithm for calculating the aerodynamic characteristics of a Darrieus vertical-axis wind turbine (H-rotor) in a steady airflow was verified. The authors obtained functional relationships between the angle of attack and the relative free-stream velocity and the speed parameter, and proposed approximation formulas for the lift and drag coefficients of the NASA-0021 airfoil. By integrating the equations for the change in the angular momentum of the mechanical system, the dynamics of establishing the rotor's equilibrium angular velocity were numerically determined.
References
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