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NASA-TM-214341: Sealing in Turbomachinery
Abstract: Clearance control is of paramount importance to turbomachinery designers and is required to meet today's aggressive power output, efficiency, and operational life goals. Excessive clearances lead to losses in cycle efficiency, ...
NASA-CR-135307: Aerodynamic performance of conventional and advanced design labyrinth seals with solid-smooth abradable, and honeycomb lands
Abstract: Labyrinth air seal static and dynamic performance was evaluated using solid, abradable, and honeycomb lands with standard and advanced seal designs. The effects on leakage of land surface roughness, abradable land porosity, ...