Results 11 to 20 of about 133 (76)

Study and design of a low cost cooled nozzle through metal additive manufacturing [PDF]

open access: yes, 2021
State of the art rocket engines are reaching performance levels that have become limited by the available manufacturing techniques. With a great focus on these engines’ efficiency, rocket engine producers are focusing on increasing combustion chamber ...
Juan Marí, Héctor
core   +2 more sources

Role of precombustion chamber design in feed-system coupled instabilities of hybrid rockets [PDF]

open access: yes, 2020
Oxidizer feed-system coupled instabilities have been observed in several liquid and hybrid propellant rocket engines, although they are not likely to be catastrophic for the latter.
Andrianov, A   +7 more
core   +1 more source

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

open access: yes, 2019
International audienceThe 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
Farago, François   +7 more
core   +4 more sources

복잡 관망을 포함한 클러스터 액체 추진 로켓의 포고 불안정성 해석 [PDF]

open access: yes, 2021
학위논문 (석사) -- 서울대학교 대학원 : 공과대학 협동과정 우주시스템 전공, 2021. 2. 신상준.Pogo phenomenon is an instability that occurs in a liquid propellant space launch vehicle. When the increased frequencies of the fuselage modes along with fuel consumption coincide with those of ...
유정욱
core  

Scaling of Performance in Liquid Propellant Rocket Engine Combustion Devices [PDF]

open access: yes, 2008
This paper discusses scaling of combustion and combustion performance in liquid propellant rocket engine combustion devices. In development of new combustors, comparisons are often made between predicted performance in a new combustor and measured ...
Hulka, James R.
core   +1 more source

ВИЗНАЧЕННЯ ТЕМПЕРАТУРИ ПОВЕРХНІ РЕБЕР В ТРАКТАХ ОХОЛОДЖЕННЯ КАМЕР РРД [PDF]

open access: yes
This study focuses on heat transfer processes in the fins of cooling ducts used in liquid propellant rocket engines. Accurately determining the finning efficiency is a crucial step in cooling system analysis and requires appropriate and precise methods ...
Bucharskyi, V. L., Sliusariev, V. V.
core   +2 more sources

Preliminary Survey of a Rocket Engine for a Microsatellite Launcher [PDF]

open access: yes, 2015
1. Introducció.2. Anàlisi de missió.3. Elecció d'un sistema propulsor per la missió en particular, a partir d'una anàlisi comparativa de diferents tipus de motor coet (avantatges i inconvenients de cadascun). 4.
Gómez Ferreras, Flàvia
core  

Flame Characteristics and Response of a High-Pressure LOX/CNG Rocket Combustor with Large Optical Access [PDF]

open access: yes, 2022
Hot-fire tests were performed with a single-injector research combustor featuring a large optical access (255 × 38 mm) for flame imaging. These tests were conducted with the propellant combination of liquid oxygen and compressed natural gas (LOX/CNG) at ...
Armbruster, Wolfgang   +5 more
core   +2 more sources

Robust Transient Control of Reusable Liquid-Propellant Rocket Engines [PDF]

open access: yes, 2019
International audienceThe current trend towards a more affordable access to space is generally materialising in reusable launchers and engines. From the control perspective, these reusable liquid-propellant rocket engines (LPRE) imply more demanding ...
Farago, Francois   +6 more
core   +1 more source

ДО ВИЗНАЧЕННЯ ПАРАМЕТРІВ ПОТОКУ НА ВИХОДІ З ЗАВІСИ ОХОЛОДЖЕННЯ КАМЕРИ ЗГОРЯННЯ РІДИННОГО РАКЕТНОГО ДВИГУНА [PDF]

open access: yes
The design of liquid propellant rocket engines (LPREs) necessitates the efficient cooling of the combustion chamber walls. Despite the prevalence of regenerative cooling, it frequently proves inadequate, necessitating supplementary techniques such as the
Bucharskyi, V. L., Ponomarov, O. M.
core   +2 more sources

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