Blade Bowing Effect on Aerodynamic Performance of a Highly Loaded Turbine Cascade

摘要

The blade bowing is able to improve the aerodynamic performance of the highly loaded turbine cascade. A +10 deg bowing angle gives the optimal aerodynamic performance under conditions of this work. But the overall improvement is insignificant. The spanwise distribution of the yaw flow angle is improved by using positively bowed blades. The effects of negative blade bowing are opposite to the positive one.