ANALOGY BETWEEN A FLAPPING WING AND A WIND TURBINE WITH A VERTICAL AXIS OF REVOLUTION

摘要

Based on an analysis of available experimental data the hypothesis about an analogy between a flapping winq and. a wind turbine of the Darrieus rotor type is justified. It is demonstrated that the torque on the shaft, of the Darrieus rotor is generated by thrust forces acting on, the blades in a pulsed flow. A conclusion is drawn that it, is necessary to perform, aerodynamic calculations of blades on the basis of the nonlinear theory of the wing in an unsteady flow with allowance for the airfoil thickness.