通过进排气总压比EPR测推力的基本原理

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1989, Vol. 10 ›› Issue (8): 443-446.

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BASIC PRINCIPLES OF MEASURING THRUST THROUGH EXHAUST TO INLET TOTAL PRESSURE RAT10-ENGINE PRESSURE RATIO EPR

Cui Jiya

Beijing University of Aeronautics and Astronautics

Received:1988-03-26 Revised:1900-01-01 Online:1989-08-25 Published:1989-08-25

Abstract

Abstract:

EPR （Engine Pressure Ratio）, I.E.the ratio of exhaust to inlet total Pressure, has already been used in a lot of jet engines as the main operation control in place of the traditional engine rpm.In this paper, specific formulas to determine similarized thrust R/Po from EPR and flight Mach number are derived, which could be used to calculate or measure the engine thrust. Engineering applications of the basic principles are discussed for reference.

Key words: EPR, similarized thrust, thrust coefficient, matching line

Cui Jiya . BASIC PRINCIPLES OF MEASURING THRUST THROUGH EXHAUST TO INLET TOTAL PRESSURE RAT10-ENGINE PRESSURE RATIO EPR[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1989, 10(8): 443-446.

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BASIC PRINCIPLES OF MEASURING THRUST THROUGH EXHAUST TO INLET TOTAL PRESSURE RAT10-ENGINE PRESSURE RATIO EPR

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