High Speed Wind Tunnel Tests of Some Turbine Blades

Abstract

This report presents the results of high speed cascade tests on some turbine blades. The wind tunnel used for the cascade tests had the test section at the suction side of blower. For the sake of simplicity, the control of the boundary layer at the side wall was ignored. One typical impulse blade and one noz le profile were tested. In this test the effects of pitch-chord ratio were mainly investigated.