Experimental investigation of air-cooled turbine blades in turbojet engine XII : cooling effectiveness of a blade with an insert and with fins made of a continuous corrugated sheet

Edward R. Bartoo, John L. Clure
naca-rm-e52f24
Aug 1952


An investigation was conducted in a modified turbojet engine to determine the cooling effectiveness of an air-cooled turbine-rotor blade employing a corrugated metal sheet brazed to the inner surface of the blade shell to increase the internal heat-transfer area. An insert blocking the central portion of the cooling passage permitted the use of short corrugations of uniform height, improved coolant distribution, and increased cooling effectiveness.

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http://naca.central.cranfield.ac.uk/reports/1952/naca-rm-e52f24.pdf