Results 91 to 100 of about 19,118 (298)

A remote augmentor lift system with a turbine bypass engine [PDF]

open access: yes
Two supersonic vertical takeoff or landing (VTOL) aircraft engine types, a conventional medium bypass ratio turbofan, and a turbine bypass turbojet were studied. The aircraft assumed was a clipped delta wing with canard configuration.
Fishbach, L. H., Franciscus, L. C.
core   +1 more source

Impulse Correlation for Partially Filled Detonation Tubes [PDF]

open access: yes, 2004
The effect of nozzles on the impulse obtained from a detonation tube of circular cross section has been the focus of many experimental and numerical studies. In these cases, the simplified detonation tube is closed at one end (forming the thrust surface)
Cooper, M., Schauer, F., Shepherd, J. E.
core   +1 more source

Theoretical investigation of acceleration of a turbojet engine

open access: yes, 1947
The failure of turbojet aircraft propulsion units to accelerate rapidly to high thrust operation when emergencies arise in slow speed flight has restricted their use in aircraft applications, and has also concentrated considerable attention upon their acceleration characteristics in an effort to produce better results.
Satterfield, Loys Malcolm   +1 more
openaire   +3 more sources

Environmental and High-Strain Rate effects on composites for engine applications [PDF]

open access: yes
The Lewis Research Center is conducting a series of programs intended to investigate and develop the application of composite materials to structural components for turbojet engines.
Chamis, C. C., Smith, G. T.
core   +1 more source

Abating exhaust noises in jet engines [PDF]

open access: yes, 1974
A noise abating improvement for jet engines including turbojets, turbofans, turboprops, ramjets, scramjets, and hybrid jets is introduced. A provision is made for an apparatus in the primary and/or secondary flow streams of the engines; the apparatus ...
Schwartz, I. R.
core   +1 more source

Investigation of Micro Gas Turbine Systems for High Speed Long Loiter Tactical Unmanned Air Systems

open access: yesAerospace, 2019
In this study, the on-going research into the improvement of micro-gas turbine propulsion system performance and the suitability for its application as propulsion systems for small tactical UAVs (<600 kg) is investigated.
James Large, Apostolos Pesyridis
doaj   +1 more source

Calibration and verification of an original module measuring turbojet engine blades geometric parameters

open access: yesArchive of Mechanical Engineering, 2023
D. Szybicki   +3 more
semanticscholar   +1 more source

Hypersonic cruise aircraft propulsion integration study, volume 1 [PDF]

open access: yes
A hypersonic cruise transport conceptual design is described. The integration of the subsonic, supersonic, and hypersonic propulsion systems with the aerodynamic design of the airframe is emphasized.
Brewer, G. D., Morris, R. E.
core   +1 more source

Research on Carbon Footprint Reduction During Hydrogen Co-Combustion in a Turbojet Engine

open access: yesEnergies
The paper presents experimental studies on the effect of co-combustion of aviation kerosene with hydrogen in the GTM400 turbojet engine on the change in the carbon footprint generated by the engine in relation to its standard operation without hydrogen ...
Bartosz Ciupek   +2 more
doaj   +1 more source

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