A Method for Analyzing Dynamic Stall of Helicopter Rotor Blades
Author: Peter Crimi
Publisher:
Published: 1972
Total Pages: 116
ISBN-13:
DOWNLOAD EBOOK →A model for each of the basic flow elements involved in the unsteady stall of a two-dimensional airfoil in incompressible flow is presented. The interaction of these elements is analyzed using a digital computer. Computations of the loading during transient and sinusoidal pitching motions are in good qualitative agreement with measured loads. The method was used to confirm that large torsional response of helicopter blades detected in flight tests can be attributed to dynamic stall.