Results 121 to 130 of about 13,962 (229)

Mach 5 inlet CFD and experimental results [PDF]

open access: yes
An experimental research program was conducted in the NASA Lewis Research Center 10 x 10 ft supersonic wind tunnel. The 2-D inlet model was designed to study the Mach 3.0 to 5.0 speed range for an over-under turbojet plus ramjet propulsion system.
Reddy, D. R.   +2 more
core   +1 more source

Durability of zirconia thermal-barrier ceramic coatings on air-cooled turbine blades in cyclic jet engine operation [PDF]

open access: yes
Thermal barrier ceramic coatings of stabilized zirconia over a bond coat of Ni Cr Al Y were tested for durability on air cooled turbine rotor blades in a research turbojet engine.
Jacobs, R. E.   +3 more
core   +1 more source

On the effects of flight on jet engine exhaust noise [PDF]

open access: yes
Differences between flight data and predictions of jet engine exhaust noise were reconciled by considering the combined effects of jet mixing noise and internally generated engine exhaust noise.
Stone, J. R.
core   +1 more source

A computer program for calculating design and off-design performance for turbojet and turbofan engines [PDF]

open access: yes, 1973
Program uses component performance maps to enable user to do analytical engine cycle calculations. Through scaling procedure, each of the component maps can be used to represent a family of maps.
Fishbach, L. H., Koenig, R. W.
core   +1 more source

Effect of afterburner lights and inlet unstarts on a mixed compression inlet turbofan engine operating at Mach 2.5 [PDF]

open access: yes
Data are presented to show the response of an uncontrolled inlet to afterburner lightoff disturbances when a mixed-compression inlet is coupled to a turbofan engine.
Batterton, P. G.   +2 more
core   +1 more source

An Estimate of the Influence of the Compressor Stability Margin on the Pick-Up Time of a Turbojet Engine

open access: yesEngineering Transactions, 1991
The relations are derived enabling to estimate the acceleration time of the turbojet engine rotor set. The terms are established allowing for the determination of the effect of individual operational and structural engine parameters upon the time needed
M. Orkisz
doaj  

Performance of an annual combustor designed for a low-cost turbojet engine [PDF]

open access: yes
Performance tests were conducted on a combustor designed for use in a low-cost turbojet engine. Low-cost features included the use of very inexpensive simplex fuel nozzles and combustor liners of perforated sheet material.
Fear, J. S.
core   +1 more source

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