Results 51 to 60 of about 56,125 (155)

Hypersonic structures: An aerodynamicist's perspective, or one man's dream is another man's nightmare [PDF]

open access: yes
The relationship between hypersonic aerodynamic and structural design is reviewed. The evolution of the hypersonic vehicle design is presented.
Hunt, J. L.   +2 more
core   +1 more source

Reusable high-temperature heat pipes and heat pipe panels [PDF]

open access: yes, 1989
A reusable, durable heat pipe which is capable of operating at temperatures up to about 3000 F in an oxidizing environment and at temperatures above 3000 F in an inert or vacuum environment is produced by embedding a refractory metal pipe within a carbon-
Camarda, Charles J., Ransone, Philip O.
core   +1 more source

Rarefied hypersonic flow simulations using the Navier-Stokes equations with non-equilibrium boundary conditions [PDF]

open access: yes, 2012
This paper investigates the use of Navier-Stokes-Fourier equations with non-equilibrium boundary conditions (BCs) for simulation of rarefied hypersonic flows.
Greenshields, Christopher, Reese, Jason
core   +1 more source

Apparatus and method for generating large mass flow of high temperature air at hypersonic speeds [PDF]

open access: yes, 1973
High temperature, high mass air flow and a high Reynolds number test air flow in the Mach number 8-10 regime of adequate test flow duration is attained by pressurizing a ceramic-lined storage tank with air to a pressure of about 100 to 200 atmospheres ...
Sabol, A. P., Stewart, R. B.
core   +1 more source

Universal behavior of internal friction in glasses below T : anharmonicity vs relaxation

open access: yes, 2006
Comparison of the internal friction at hypersonic frequencies between a few K and the glass transition temperature Tg for various glasses brings out general features. At low temperature, internal friction is only weakly dependent on the material. At high
C. A. Angell   +18 more
core   +2 more sources

A Survey of Hypersonic-Ramjet Concepts [PDF]

open access: yes, 1959
A brief discussion is presented of the major problem areas involved in the development of a hypersonic ramjet engine. Keeping the structural temperature to an acceptably low level is the severest problem expected.
Weber, R. J.
core   +1 more source

Variable geometry manned orbital vehicle Patent [PDF]

open access: yes, 1970
Variable geometry manned orbital vehicle having high aerodynamic efficiency over wide speed range and incorporating auxiliary pivotal ...
Henry, B. Z., Jr., Spencer, B., Jr.
core   +1 more source

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