Investigation of a Radial Turbines Compatibility for Small Rocket Engine [PDF]
E3S Web of Conferences, 2020 In the radial turbine preliminary design for an expander rocket engine, a comparison was made with axial turbine used in Pratt & Whitney RL10 engine. One of the primary requirements of a liquid propellant rocket engine is the generation of a high thrust,
Leto Angelo
doaj +1 more source
Low-thrust liquid-propellant rocket engines as part of advanced ultralight rocket vehicle systems
Космические аппараты и технологии, 2021 This work examines the most promising design solutions for the creation of propulsion systems for ultra-light launch vehicles by small private enterprises in the rocket and space industry.
T. A. Basharina +4 more
doaj +1 more source
A computational model for the design of a nitrous oxide--paraffin wax hybrid rocket engine [PDF]
arXiv, 2023 A computational model is developed to assist the design of the first hybrid rocket engine of the McGill Rocket Team, using liquid nitrous oxide as an oxidizer and solid paraffin wax as a fuel. The model is developed in three phases: In the first phase, a steady-state model which neglects transient performance decrease of the hybrid engine is considered.
arxiv
Aerospace, 2023 This paper proposed a multi-objective, multi-disciplinary design optimization and multi-attribute evaluation method for the manned lunar lander descent stage.
Yang Liu +5 more
doaj +1 more source
Cryogenic Tribology of High-Speed Bearings and Shaft Seals in Liquid Hydrogen
Tribology Online, 2011 Liquid hydrogen (LH2) is excellent in extensive storage and transportation systems, such as being used as fuel in highly efficient liquid-rocket engines.
Masataka Nosaka
doaj +1 more source
Developing a New Tool to Implement Computer-Supported Active Learning Strategies in the Engineering Classroom [PDF]
arXiv, 2021 Successful implementation of active learning strategies in the engineering classroom -- and in particular in certain subjects which are highly technological in nature such as, for instance, rocket engines and space propulsion -- means overcoming certain challenges that arise from the fact that these are extremely complex systems to analyze.
arxiv
Large eddy simulations of reacting and non-reacting transcritical fuel sprays using multiphase thermodynamics [PDF]
, 2022 Accurate simulations of high-pressure transcritical fuel sprays are essential for the design and optimization of next-generation gas turbines, internal combustion engines, and liquid propellant rocket engines. Most important and challenging is the accurate modelling of complex real-gas effects in high-pressure environments, especially the hybrid ...
arxiv +1 more source
Physics-Aware Neural Network Flame Closure for Combustion Instability Modeling in a Single-Injector Engine [PDF]
arXiv, 2021 Neural networks (NN) are implemented as sub-grid flame models in a large-eddy simulation of a single-injector liquid-propellant rocket engine with the aim to replace a look-up table approach. The NN training process presents an extraordinary challenge. The multi-dimensional combustion instability problem involves multi-scale lengths and characteristic ...
arxiv
Turbulence Modeling Insights into Supercritical Nitrogen Mixing Layers
Energies, 2020 In Liquid Rocket Engines, higher combustion efficiencies come at the cost of the propellants exceeding their critical point conditions and entering the supercritical domain.
Leandro Magalhães +3 more
doaj +1 more source
2018 Joint Propulsion Conference, 2018 A regeneratively-cooled nozzle for liquid rocket engine applications is a significant cost of the overall engine due to the complexities of manufacturing a large thin-walled structure that must operate in extreme temperature and pressure environments ...
P. Gradl +2 more
semanticscholar +1 more source