Results 171 to 180 of about 11,282 (264)

Propellant Injector Influence on Liquid-Propellant Rocket Engine Instability

Journal of Propulsion and Power, 2015
The avoidance of acoustic instabilities, which may cause catastrophic failure, is demanded for liquid-propellant rocket engines. This occurs when the energy released by combustion amplifies acoustic disturbances; it is therefore essential to avoid such positive feedback.
Pavel P. Popov, William A. Sirignano, Athanasios Sideris   +2 more
openaire   +2 more sources

Design and development of mechanical processing technology to obtain turbulators in the liquid-propellant rocket engine combustion chamber

Engineering Journal: Science and Innovation, 2023
The paper considers design of the liquid-propellant rocket engine combustion chamber. Artificial roughness application area in the chamber shells is shown, and the existing methods to obtain artificial roughness in the rocket propulsion engineering are ...
S. Yukhnevich, A. Ryazantsev, I. V. Evchenko   +2 more
semanticscholar   +1 more source

Development of a Liquid-Propellant Rocket Powered by a Rotating Detonation Engine

Journal of Propulsion and Power, 2023
This paper presents work on a demonstrator rocket powered by a rotating detonation engine (RDE) fed by liquid propellants. Key to the success of the project was the development of a suitably efficient and lightweight RDE. After selecting the propellants:
M. Kawalec, P. Wolański, W. Perkowski, A. Bilar   +3 more
semanticscholar   +1 more source

Turbine inlet temperature effects on the start process of an expansion cycle liquid propellant rocket engine

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2022
The main objective of this study is to investigate the effect of turbine inlet temperature on the transient phase of expansion cycle liquid propellant rocket engines during start.
Mehrad Amin Eskandari, H. Karimi, A. Sarvari, M. Naderi   +3 more
semanticscholar   +1 more source

Numerical Investigation of Work Cycle Characteristics in the Combustion Chamber of a Lox/Methane Liquid-Propellant Rocket Engine Featuring Reductant Power Gas Combustion

Herald of the Bauman Moscow State Technical University Series Mechanical Engineering, 2022
We performed a numerical investigation of cumulative efficiency and the structure in detail concerning the working process in the combustion chamber of a lox/methane liquid-propellant rocket engine operating in steady-state, boosted and throttled modes ...
D. A. Sidlerov, S. Fedorov
semanticscholar   +1 more source

Calculation of minimum supply of fuel in contact with the innertank device to ensure the operation of a liquid-propellant rocket engine in zero gravity

Engineering Journal: Science and Innovation, 2021
The paper introduces the results of theoretical studies of the process of liquid fuel deposition in liquid-propellant rocket engine tanks under conditions of free (undisturbed) orbital (suborbital) flight under the influence of a small pre-launch ...
V. Sapozhnikov, A. Polyanskiy, A. V. Korolkov   +2 more
semanticscholar   +1 more source

A regenerative cooling system for the chamber of a liquid-propellant rocket engine with interchannel coolant flow through a metal mesh

Space engineering and technology, 2021
The paper discusses a new method for regenerative cooling of the chamber of liquid-propellant rocket engines using the concept of interchannel coolant flow through a porous metal mesh made by vacuum diffusion welding of woven metal netting. It provides a
F. Pelevin, A. Ponomarev
semanticscholar   +1 more source

Liquid-Propellant Rocket Engine Injector Dynamics

Journal of Propulsion and Power, 1998
The dynamic characteristics of liquid-rocket injectors in the presence of intense combustion-chamber and propellant feed-line oscillations are discussed. Liquid-propellant injectors always function in nonsteady e ow environments and are therefore considered as a dynamic component of an engine.
Vladimir G. Bazarov, Vigor Yang
openaire   +1 more source

Robust Sensor Optimization for Liquid Propellant Rocket Engine Model Parameter Estimation

IEEE Transactions on Aerospace and Electronic Systems
Parameter estimation can adjust the model as per the actual data, which is the key to reusable liquid propellant rocket engine health management. We introduce a nonlinear parameter estimation method, which contains estimability analysis and solving ...
Zizhao Wang, Zhijiang Shao, Hongyu Chen
semanticscholar   +1 more source

Simulation of liquid propellant rocket engine combustion instabilities

17th Aerospace Sciences Meeting, 1979
A simulation technique for studying the high frequency combustion instabilities of liquid propellant rocket engines has been developed and used to investigate various aspects of instability phenomena. Of importance was investigation of the significance of the method of coupling the combustion and the gas dynamics of the system.
M. B. Ventrice, J. C. Fang, K. R. Purdy
openaire   +1 more source