Accession Number:

AD0274780

Title:

CRYPTO-STEADY PRESSURE EXCHANGE

Descriptive Note:

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY N Y

Personal Author(s):

Report Date:

1962-03-01

Pagination or Media Count:

1.0

Abstract:

CRYPTO-STEADY PRESSURE EXCHANGE IS A MODE OF DIRECT ENERGY TRANSFER BETWEEN FLOWS, BASED ON THE PRINCIPLE THAT TWO ADJACENT STREAMS WHICH ARE BOTH ISOENERGETIC IN THE SAME FRAME OF REFERENCE WILL, IN GENERAL, EXCHANGE MECHANICAL ENERGY IN ANY OTHER FRAME. The efficiency of this process is potentially high, because a change of frame of reference is reversible, and the associated transfer of energy is therefore nondissipative. An application of this principle to thrust or lift generation is discussed for the purpose of illustration. In this application the interacting flows are steady and isoenergetic in a rotating frame of reference but exchange energy in a stationary frame. The exchange mechanism is essentially similar to that of a turbofan, but the blades are now pattern rather than bodies of abiding materials. Performance calculations are carried out for the case of interactions taking place within short ducts of constant cross-sectional area. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE