Results 1 to 10 of about 25,209 (263)
Thermostructural Numerical Analysis of the Thrust Chamber of a Liquid Propellant Rocket Engine. [PDF]
Materials (Basel), 2022 The numerical simulation of rocket engine thrust chambers is very challenging as several damaging phenomena, such as plasticity, low-cycle-fatigue (LCF) and creep occur during its service life.
Citarella R +3 more
europepmc +4 more sources
Particle-Filter-Based Fault Diagnosis for the Startup Process of an Open-Cycle Liquid-Propellant Rocket Engine. [PDF]
Sensors (Basel)This study introduces a fault diagnosis algorithm based on particle filtering for open-cycle liquid-propellant rocket engines (LPREs). The algorithm serves as a model-based method for the startup process, accounting for more than 30% of engine failures ...
Cha J, Ko S, Park SY.
europepmc +3 more sources
Upper Stage Liquid Propellant Rocket Engine: A Case Analysis [PDF]
Journal of Aerospace Technology and Management, 2021 This paper provides an overview of the design and development process for the L75 liquid propellant rocket engine (LPRE) foreseen as upper stage of a satellite launch vehicle application.
Daniel Soares de Almeida +2 more
doaj +6 more sources
Fundamental Concepts of Liquid-Propellant Rocket Engines [PDF]
, 2020 The engine of a rocket vehicle is a machine which produces thrust by accelerating a gas flowing through the machine. The reaction to this acceleration is the force which drives the vehicle. The amount of thrust generated depends on the mass flow rate of the gas moving through the engine and on the exit velocity of the gas from the nozzle. The gas flow,
Alessandro de Iaco Veris
semanticscholar +4 more sources
Use of cryogenic components of propellants for liquid-propellant rocket engines and in life support systems of manned space vehicles [PDF]
MATEC Web of Conferences, 2020 The cited materials show the use of oxygen, hydrogen, liquefied natural gases (methane) and fluorine as components of the fuel for liquid-propellant rocket engines (LRE). The reasons for the need to use oxygen as an oxidizing agent are indicated.
Orlin Sergei A.
doaj +2 more sources
Aerospace, 2023 This study presents an optimal design approach of a pintle injector for a deep throttlable liquid-propellant rocket engine (LPRE). Even though the pintle injector is used in rocket engines, it has become more important since reusable launch vehicles ...
Jihyoung Cha +2 more
doaj +2 more sources
Forecasting thermoacoustic instabilities in liquid propellant rocket engines using multimodal Bayesian deep learning [PDF]
International Journal of Spray and Combustion Dynamics, 2021 We present a method that combines multiple sensory modalities in a rocket thrust chamber to predict impending thermoacoustic instabilities with uncertainties. This is accomplished by training an autoregressive Bayesian neural network model that forecasts
Ushnish Sengupta +3 more
semanticscholar +3 more sources
Mehran 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 +2 more sources
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроениеThe paper presents the results of simulation of spray and combustion processes in the liquid-propellant rocket engine chamber using the z77 reduced kinetic mechanism of chemical reactions and a hybrid method for determining spray parameters of a swirl ...
M. N. Senchev +4 more
doaj +2 more sources
Determination of Cyclogram for Liquid-Propellant Rocket Engine [PDF]
International Journal of Aeronautical and Space Sciences, 2002 A vertical test stand based on launcher propulsion system was constructed and several tests for the determination of cyclogram were carried out. To make an accurate estimation, static and dynamic pressures were measured and analyzed. Especially, static pressure measurements using fast response sensors without extension tubes were used to determine ...
Dae Sung Lee +7 more
openaire +3 more sources