Results 81 to 90 of about 6,709 (233)

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

Combustion and Propulsion Research [PDF]

open access: yes, 1963
Combustion chemistry is one of the oldest branches of chemical science. Among its pioneers must be counted Lavoisier, Bunsen, and others whose names belong among those of the founders of chemical science.
Penner, S. S.
core   +1 more source

Ascent trajectory optimisation for a single-stage-to-orbit vehicle with hybrid propulsion [PDF]

open access: yes, 2012
This paper addresses the design of ascent trajectories for a hybrid-engine, high performance, unmanned, single-stage-to-orbit vehicle for payload deployment into low Earth orbit. A hybrid optimisation technique that couples a population-based, stochastic
Brown, Richard   +4 more
core   +1 more source

Experimental Research of Supersonic Flow Around Simulating Rocket-Ramjet

open access: yesMATEC Web of Conferences, 2015
The results of experimental researches of the structure and of the basic parameters of the air when flow around flat and axisymmetric models of rocket-ramjet engine are presented.
Maslov Eugene A.   +2 more
doaj   +1 more source

The design and performance estimates for the propulsion module for the booster of a TSTO vehicle [PDF]

open access: yes
A NASA study of the propulsion systems for possible low-risk replacements for the Space Shuttle is presented. Results of preliminary studies to define the USAF two-stage-to-orbit (TSTO) concept to deliver 10,000 pounds to low polar orbit are described ...
Maldonado, Jaime J.   +1 more
core   +1 more source

COMPUTATIONAL ANALYSIS OF THE MIXING ZONE IN THE COMBUSTION CHAMBER OF RAMJET

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2008
A theoretical analysis of mixing in the secondary combustion chamber of ramjet is presented. Theoretical investigations were initiated to insight into the flow field of the mixing zone of the ramjet combustor and a computer program to calculate ...
Adil A. Al-Hemiri, Sa’ad A. Fa’ek
doaj  

Air intakes for a probative missile of rocket ramjet [PDF]

open access: yes
The methods employed to test air intakes for a supersonic guided ramjet powered missile being tested by ONERA are described. Both flight tests and wind tunnel tests were performed on instrumented rockets to verify the designs.
Laruelle, G.
core   +1 more source

Study of heat transfer processes in the flowing part of hypersonic air-ramjet engine

open access: yesMATEC Web of Conferences, 2018
The technique and results of the experimental-theoretical study of gas dynamics, heat transfer and the structure of gas flow in the flowing channel of a model hypersonic air-ramjet engine are presented for Mach numbers M = (5; 6).
Maslov Eugene   +4 more
doaj   +1 more source

An evaluation of composite propulsion for single-stage-to-orbit vehicles designed for horizontal take-off [PDF]

open access: yes
Composite propulsion was analyzed for single-stage-to-orbit vehicles designed for horizontal take-off. Trajectory, geometric, and mass analyses were performed to establish the orbital payload capability of six engines.
Martin, J. A.
core   +1 more source

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