A Study of the Mutual Interference between Rows of Turbine Nozzles and Buckets

Abstract

In this paper the mutual interference between succeeding turbine blade rows, one is typical stator and another is typical rotor has been experimentally investigated. Nozzles and buckets were tested in tandem on the two dimensional wind tunnel. Both cascades remainded stationary during the test. Relative position of the two cascades were varied both in tangential and axial directions. The difference angle between the nozzle exit and bucket inlet and the ratio of blade spacing of two rows were also varied. As a result the general characteristics of mutual interference of between adjacent blade rows in turbine were clarified.