Results 121 to 130 of about 159,512 (193)

The NASA Langley Research Center 0.3-meter transonic cryogenic tunnel T-P/Re-M controller manual [PDF]

open access: yes
A new microcomputer based controller for the 0.3-m Transonic Cryogenic Tunnel (TCT) has been commissioned in 1988 and has reliably operated for more than a year.
Balakrishna, S., Kilgore, W. Allen
core   +1 more source

Measurements of the Reactivity of Premixed, Stagnation, Methane-Air Flames at Gas Turbine Relevant Pressures

open access: bronze, 2018
Philippe Versailles   +3 more
openalex   +1 more source

Transient response characteristics of test chamber Mach number [PDF]

open access: yes
The transient dynamic characteristics of a test chamber Mach number was established for a disturbance initiated in the test chamber. An approximate linear expression was given, showing that the change in the Mach number is linearly proportional to the ...
Tcheng, P.
core   +1 more source

Preliminary calibration of a generic scramjet combustor [PDF]

open access: yes
The results of a preliminary investigation of the combustion of hydrogen fuel at hypersonic flow conditions are provided. The tests were performed in a generic, constant-area combustor model with test gas supplied by a free-piston-driven reflected-shock ...
Brescianini, C.   +6 more
core   +1 more source

Malthusian dynamism and the rise of Europe: Make war, not love [PDF]

open access: yes
This paper argues that Malthusian regimes are capable of sustained changes in per capita incomes. Shifting mortality and fertility schedules can lead to different steady-state income levels, with long periods of growth during the transition.
Joachim Voth, Nico Voigtländer
core  

Wind tunnel investigation of an all flush orifice air data system for a large subsonic aircraft [PDF]

open access: yes
The results of a wind tunnel investigation on an all flush orifice air data system for use on a KC-135A aircraft are presented. The investigation was performed to determine the applicability of fixed all flush orifice air data systems that use only ...
Flechner, S. G.   +2 more
core   +1 more source

Experimental investigation of a swept-strut fuel-injector concept for scramjet application [PDF]

open access: yes
Results are presented of an experiment to investigate the behavior at Mach 4 flight conditions of the swept-strut fuel-injector concept employed in the Langley integrated modular scramjet engine design.
Anderson, G. Y.   +3 more
core   +1 more source

Revised FORTRAN program for calculating velocities and streamlines on the hub-shroud midchannel stream surface of an axial-, radial-, or mixed-flow turbomachine or annular duct. 2: Programmer's manual [PDF]

open access: yes
A FORTRAN IV computer program has been developed that obtains a detailed subsonic or shock free transonic flow solution on the hub-shroud midchannel stream surface of a turbomachine.
Katsanis, T., Mcnally, W. D.
core   +1 more source

Experimental and theoretical study of combustion jet ignition [PDF]

open access: yes
A combustion jet ignition system was developed to generate turbulent jets of combustion products containing free radicals and to discharge them as ignition sources into a combustible medium.
Chen, D. Y.   +2 more
core   +1 more source

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