Results 71 to 80 of about 23,048 (197)

Determination of the effects of nozzle nonlinearities upon nonlinear stability of liquid propellant rocket motors [PDF]

open access: yes
The research is reported concerning the development of a three-dimensional nonlinear nozzle admittance relation to be used as a boundary condition in the nonlinear combustion instability theories for liquid propellant rocket engines.
Padmanabhan, M. S.   +2 more
core   +1 more source

Orbiter/launch system [PDF]

open access: yes, 1981
The system includes reusable turbojet propelled booster vehicles releasably connected to a reusable rocket powered orbit vehicle. The coupled orbiter-booster combination takes off horizontally and ascends to staging altitude and speed under booster power
Jackson, L. R.   +3 more
core   +1 more source

Mathematical model for heat transfer in variable thickness fins for rocket engines

open access: yesChallenges and Issues of Modern Science
Purpose. This article aims to develop a mathematical model for a fin in the cooling system of liquid propellant rocket engines. The objective is to enable calculations for fins with arbitrary thickness variation. The developed mathematical model will be
Volodymyr Sliusariev, Valerii Bucharskyi
doaj  

Space engine safety system [PDF]

open access: yes
A rocket engine safety system was designed to initiate control procedures to minimize damage to the engine or vehicle or test stand in the event of an engine failure. The features and the implementation issues associated with rocket engine safety systems
Maul, William A., Meyer, Claudia M.
core   +1 more source

National Security Space Launch [PDF]

open access: yes, 2020
The United States Space Force’s National Security Space Launch (NSSL) program, formerly known as the Evolved Expendable Launch Vehicle (EELV) program, was first established in 1994 by President William J.
Zhang, Michelle
core  

Mathematical formulation of the ontology-based selection algorithm for fixed-wing unmanned aerial vehicles

open access: yesАвіаційно-космічна техніка та технологія
The subject matter of this study is the thermophysical processes occurring in the cooling channels of liquid-propellant rocket engines. The goal of this research is to create an algorithm for optimizing cooling channels. The tasks include formulating the
Iurii Vorobiov   +2 more
doaj   +1 more source

Recoverable single stage spacecraft booster Patent [PDF]

open access: yes, 1967
Recoverable, reusable single stage booster capable of injecting large payloads into circular earth ...
Bono, P.
core   +1 more source

DEVELOPMENT OF TEST STAND FOR EXPERIMENTAL INVESTIGATION OF CHEMICAL AND PHYSICAL PHENOMENA IN LIQUID ROCKET ENGINE. doi: 10.5028/jatm.2011.03021111

open access: yesJournal of Aerospace Technology and Management, 2011
The main objective of this work was to present the specifi cation of an experimental fi ring test stand for liquid rocket engines (LRE) and develop a program for control and acquisition of data.
Emerson Andrade Santos   +3 more
doaj  

Size effects and optimization during laser directed energy deposition on high thermal conductivity copper alloys

open access: yesJournal of Materials Research and Technology
High-copper alloy/nickel-based high-temperature alloy bimetallic structures are widely utilized in critical components, such as thrust chambers of liquid rocket engines, water cooling circuits for fusion reactor deflectors, and electromagnetic railguns ...
Baopeng Zhang   +5 more
doaj   +1 more source

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