Analysis of coolant-flow requirements for an improved, internal-strut-supported, air-cooled turbine-rotor blade

Schramm, Wilson B., Nachtigall, Alfred J.
naca-rm-e51l13
1952


An analytical evaluation of a new typ An analytical evaluation of a new type of air-cooled turbine-rotor-blade design, based on the principle of submerging the load-carrying element in cooling air within a thin high-temperature sheel, indicates that this principle of blade design permits the load carrying element to be operated at considerably lower temperature than that of the enveloping shell. Comparison with an air-cooled shell-supported air-cooled blade has greater potentiality to withstand increased stresses that can be anticipated in future engines.

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