Abstract: The amount of cooling air assigned to seal high pressure turbine (HPT) rim cavities is critical for performance as well as component life. Insufficient air leads to excessive hot annulus gas ingestion and its penetration ...

Abstract: This paper describes experiments in a subscale axial turbine stage equipped with an axially overlapping radialclearance seal at the disk cavity rim and a labyrinth seal radially inboard which divides the disk cavity into ...