The flexure-torsion flutter of cambered aerofoils in cascade

Abstract

This report contains the results of a series of tests on the flexure-torsion flutter of cascades of aerofoils of 30° and 45° camber. The critical flutter speeds and frequencies in cascade are expressed as ratios of the values for the aerofoil in the isolated condition, The tests cover stagger angles between -30° and +30° and gap chord ratios up to 1.5 at a Reynolds number of 1 x 10 to the power of 5 based on aerofoil chord.