Results 61 to 70 of about 10,740 (231)

Factors Affecting Characteristic Length of the Combustion Chamber of Liquid Propellant Rocket Engines

open access: yesMehran University Research Journal of Engineering and Technology, 2019
Optimum characteristic length of the combustion chamber of liquid rocket engine is very important to get higher energy from the liquid propellants. Characteristic length is defined by the time required for complete burning of fuel.
Tajwali Khan, Ihtzaz Qamar
doaj  

Dual-fuel, dual-mode rocket engine [PDF]

open access: yes, 1989
The invention relates to a dual fuel, dual mode rocket engine designed to improve the performance of earth-to-orbit vehicles. For any vehicle that operates from the earth's surface to earth orbit, it is advantageous to use two different fuels during its ...
Martin, James A.
core   +1 more source

Shock‐Assisted Flow Control System in Convergent‐Divergent Nozzle: A Numerical Study on Unconventional Protuberance With Different Geometry

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
A numerical investigation using 3D RANS simulations demonstrates significant effects of protuberance geometry—cubic, cylindrical, spherical, and conical—on shock‐induced thrust vectoring in supersonic nozzles. Cubic protuberances provide the maximum jet deflection (˜2°) with negligible thrust reduction.
Mohammadreza Soufivand   +3 more
wiley   +1 more source

Liquid rocket performance computer model with distributed energy release Interim final report, 15 Aug. 1969 - 15 Aug. 1970 [PDF]

open access: yes
Liquid propellant rocket engine performance computer program with distributed energy ...
Campell, D. T.   +2 more
core   +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

Radiative Forcing and Ozone Depletion of a Decade of Satellite Megaconstellation Missions

open access: yesEarth's Future, Volume 14, Issue 5, May 2026.
Abstract Satellite megaconstellations (SMCs) are driving rapid increases in rocket launch and re‐entry rates, emitting pollutants throughout the atmosphere. The environmental impact of SMCs lacks characterization to determine the need for regulation. We utilize a global 3D emission inventory of recent (2020–2022) space activity that distinguishes SMC ...
Connor R. Barker   +12 more
wiley   +1 more source

An MPC Approach to Transient Control of Liquid-Propellant Rocket Engines

open access: yesIFAC-PapersOnLine, 2019
The current context of launchers reusability requires the improvement of control algorithms for their liquid-propellant rocket engines. Their transient phases are generally still performed in open loop. In this paper, it is aimed at enhancing the control performance and robustness during the fully continuous phase of the start-up transient of a generic
Sergio Pérez-Roca   +7 more
openaire   +2 more sources

The prediction of the nonlinear behavior of unstable liquid rockets [PDF]

open access: yes
Analytical technique for solving nonlinear combustion problems associated with liquid propellant rocket ...
Powell, E. A., Zinn, B. T.
core   +1 more source

Tank construction for space vehicles Patent [PDF]

open access: yes, 1967
Liquid propellant tank design with semitoroidal ...
Blumrich, J. F., Loy, C. A.
core   +1 more source

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