Influence of the Airfoil Leading Edge Thickness on Turbine Cascade Losses Due to the Incidence

Abstract

On the basis of experimental studies, it is established that the thickening of the airfoil leading edge at positive incidences increases the impingement resistance of the moderate convergence cascade, but it does not exert impact in the high convergence cascade, and practically does not affect losses in the cascade of any convergence at the negative incidences.