Study of Secondary-flow Patterns in an Annular Cascade of Turbine Nozzle Blades with Vortex Design

by Harold E. Rohlik, Hubert W. Allen, Howard Z. Herzig

1953

In order to increase understanding of the origin of losses in a turbine, the secondary-flow components in the boundary layers and the blade wakes of an annular cascade of turbine nozzle blades (vortex design) were investigated. A detailed study was made of the total-pressure contours and, particularly, of the inner-wall loss cores down-stream of the blades.