Effects of LOX Particle Diameter on Combustion Characteristics of a Gas-Liquid Pintle Rocket Engine
Joint Authors
Zhou, Rui
Fang, Xinxin
Jin, Xuan
Shen, Chibing
Source
International Journal of Aerospace Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-15
Country of Publication
Egypt
No. of Pages
16
Abstract EN
LOX/GCH4 pintle injector is suitable for variable-thrust liquid rocket engines.
In order to provide a reference for the later design and experiments, three-dimensional numerical simulations with the Euler-Lagrange method were performed to study the effect of the initial particle diameter on the combustion characteristics of a LOX/GCH4 pintle rocket engine.
Numerical results show that, as the momentum ratio between the radial LOX jet and the axial gas jet is 0.033, the angle between the LOX particle trace and the combustor axial is very small.
Due to the large recirculation zones, premixed combustion mainly occurs in the injector wake region.
As the initial LOX particle diameter increases, the LOX evaporation rate and the combustion efficiency decrease until the combustion terminates with the initial LOX particle diameter greater than 110 μm.
The oscillation amplitude of the combustor pressure increases significantly along with the increase of the initial LOX particle diameter, and the low-frequency unstable combustion occurs when the initial LOX particle diameter exceeds 60 μm.
The combustor pressure oscillation at about 40 Hz couples with the swinging process of spray and flame, while the unsteady LOX evaporation amplifies the combustor pressure oscillations at 80 Hz and its harmonic frequency.
American Psychological Association (APA)
Jin, Xuan& Shen, Chibing& Zhou, Rui& Fang, Xinxin. 2020. Effects of LOX Particle Diameter on Combustion Characteristics of a Gas-Liquid Pintle Rocket Engine. International Journal of Aerospace Engineering،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1168432
Modern Language Association (MLA)
Jin, Xuan…[et al.]. Effects of LOX Particle Diameter on Combustion Characteristics of a Gas-Liquid Pintle Rocket Engine. International Journal of Aerospace Engineering No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1168432
American Medical Association (AMA)
Jin, Xuan& Shen, Chibing& Zhou, Rui& Fang, Xinxin. Effects of LOX Particle Diameter on Combustion Characteristics of a Gas-Liquid Pintle Rocket Engine. International Journal of Aerospace Engineering. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1168432
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168432