Results 101 to 110 of about 9,113 (233)

NASP X-30 Propulsion technology status [PDF]

open access: yes
The performance goals of the NASP program require an aero-propulsion system with a high effective specific impulse. In order to achieve these goals, the high potential performance of air-breathing engines must be achieved over a very wide Mach number ...
Powell, William E.
core   +1 more source

Exploratory study of transient upstart phenomena in a three-dimensional fixed-geometry scramjet engine [PDF]

open access: yes
The structural and thermal design of a hydrogen fueled regeneratively cooled three dimensional fixed geometry scramjet was examined. An exploratory study was conducted at Mach 5.3 in the 7-inch Mach 7 pilot tunnel to investigate the unstart phenomena and
Wieting, A. R.
core   +1 more source

Thermal-structural design study of an airframe-integrated Scramjet [PDF]

open access: yes
The development and evaluation of a design concept for the cooled structures assembly for the Scramjet engine is discussed. Development concepts for engine subsystems and design concepts for the aircraft/engine interface are included.
Katinszky, E. A.   +5 more
core   +1 more source

Validation of scramjet exhaust simulation technique at Mach 6 [PDF]

open access: yes
Current design philosophy for hydrogen-fueled, scramjet-powered hypersonic aircraft results in configurations with strong couplings between the engine plume and vehicle aerodynamics.
Hopkins, H. B., Konopka, W., Leng, J.
core   +1 more source

Tuning Process for the Modified Magnussen Combustion Model [PDF]

open access: yes
In the application of CFD to turbulent reacting flows, one of the main limitations to predictive accuracy is the chemistry model. Using a full or skeletal kinetics model may provide good predictive ability, however, at considerable computational cost ...
Norris, A. T.
core   +1 more source

Compendium of NASA Langley reports on hypersonic aerodynamics [PDF]

open access: yes
Reference is made to papers published by the Langley Research Center in various areas of hypersonic aerodynamics for the period 1950 to 1986. The research work was performed either in-house by the Center staff or by other personnel supported entirely or ...
Cary, Aubrey M.   +2 more
core   +1 more source

Shock tunnel studies of scramjet phenomena, supplement 6 [PDF]

open access: yes
Reports by the staff of the University of Queensland on various research studies related to the advancement of scramjet technology are presented.
Allen, G.   +9 more
core   +1 more source

A parametric study of effect of forebody shape on flow angularity at Mach 8 [PDF]

open access: yes
Flow angularity and static pressure measurements have been made on the lower surface of nine forebody models that simulate the bottom forward surface of a hypersonic aircraft. Measurements were made in an area of the forebody that represents the location
Johnson, C. B., Marcum, D. C., Jr.
core   +1 more source

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