Results 81 to 90 of about 4,282 (226)

Enhancement of the CAVE computer code [PDF]

open access: yes
The computer code CAVE (Conduction Analysis via Eigenvalues) is a convenient and efficient computer code for predicting two dimensional temperature histories within thermal protection systems for hypersonic vehicles.
Burk, H. O., Rathjen, K. A.
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

Apollo Lightcraft project [PDF]

open access: yes
The detailed design of a beam-powered transatmospheric vehicle, the Apollo Lightcraft, was selected as the project for the design course. The principal goal is to reduce the LEO payload delivery cost by at least three orders of magnitude below the Space ...
Blandino, John S.   +9 more
core   +4 more sources

Active cooling design for scramjet engines using optimization methods [PDF]

open access: yes
A methodology for using optimization in designing metallic cooling jackets for scramjet engines is presented. The optimal design minimizes the required coolant flow rate subject to temperature, mechanical-stress, and thermal-fatigue-life constraints on ...
Lucas, Stephen H.   +2 more
core   +1 more source

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

Subsonic longitudinal aerodynamic characteristics and engine pressure distributions for an aircraft with an integrated scramjet designed for Mach 6 cruise [PDF]

open access: yes
A 1/10-scale model of a proposed hypersonic aircraft with an integrated scramjet was tested. The investigation took place over a Mach number range from 0.2 to 0.7 and an angle of attack range from 2 deg to approximately 17 deg at a sideslip angle of 0 ...
Fox, C. H., Jr.   +2 more
core   +1 more source

Numerical Analysis of Supersonic Film Cooling in Supersonic Flow in Hypersonic Inlet with Isolator

open access: yesAdvances in Mechanical Engineering, 2014
Supersonic film cooling is an efficient method to cool the engine with extremely high heat load. In order to study supersonic film cooling in a real advanced engine, a two-dimensional model of the hypersonic inlet in a scramjet engine with supersonic ...
Silong Zhang   +3 more
doaj   +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

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