Results 21 to 30 of about 42,190 (235)
IEEE Access, 2020 Liquid rocket engines (LREs) are the main propulsive devices of launch vehicles. Due to the complex structures and extreme working environments, LREs are also the components prone to failure.
Xiaobin Zhu +4 more
semanticscholar +1 more source
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
Research Progress of Decommissioned Solid Rocket Motor Charge Emptying and Recycling Technology [PDF]
Hangkong bingqiAs the service life of solid rocket engines comes to an end, their operational reliability and performance stability gradually decline. Effectively disposing of large numbers of retired solid rocket engines has become a critical issue.
Zhou Yaping, Lin Zhihui, Wang Maoyu, Dong Jun, Liu Tiansheng, Qiao Haitao
doaj +1 more source
Aerospace, 2021 The present work focuses on the development of new mathematical and numerical tools to deal with wave propagation problems in a realistic liquid rocket chamber environment.
Simone D’Alessandro +2 more
doaj +1 more source
Applied Sciences, 2020 Large Liquid Rocket Engines for Aerospace applications usually need to be cooled regeneratively since they are characterized by high pressure levels and heat flux with the presence, in the inner structure, of very high thermal gradients—thus ...
M. Ferraiuolo, M. Leo, R. Citarella
semanticscholar +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 Coupled Heat Transfer Calculation Strategy for Composite Cooling Liquid Rocket Engine
Aerospace, 2023 To better understand the characteristics of coupled heat transfer in liquid rocket engines, a calculation scheme is proposed in this paper. This scheme can simulate the coupled heat transfer processes, including combustion and flow in the thrust chamber,
Bo Xu +4 more
doaj +1 more source
Development Trend of Liquid Hydrogen-Fueled Rocket Engines (Part 1: Performance and Operation) [PDF]
International Journal of Aeronautical and Space Sciences, 2022 SpaceX's successful development of reusable rockets and the realization of low-cost operations have significantly impacted the space industry, institutions, and companies. Price competitiveness has become a hot topic for launch vehicle development.
Ha D, Roh T, Huh H, Lee H.
europepmc +2 more sources
JAPANESE JOURNAL OF MULTIPHASE FLOW, 1997 PURPOSE:To boost propellant to a high pressure without using a subcombustor by reheating a part of the propellant heated by the heat of a combustor by using a heat exchange means in a nozzle part. CONSTITUTION:The liquid hydrogen as fuel and liquid oxygen as oxidizer are pressurized to each high pressure by boosters 3 and 4.
openaire +2 more sources
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