Influence of Ignition Channel on the Ignition Performance of Ignition Device
Joint Authors
Chang, Jiang
Wu, Gongping
Tang, Hanwei
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-03
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Based on relative theories of gas dynamics and computational fluid dynamics, the flow field computation software ANSYS Fluent was used to simulate the steady flow field of the solid type ignition device of liquid-propellant rocket engine in two working conditions (condition I: without ignition channel, condition II: with ignition channel).
On this basis, the influence of ignition channel on the working characteristics of the solid type ignition device of the liquid-propellant rocket engine was analyzed and experimentally tested.
The results showed that when the pressure in the combustion chamber was atmospheric pressure, under condition II, the gas velocity at the throat of the ignition device did not reach the sonic velocity, and the position of sonic velocity moved to the downstream section of the ignition channel.
Compared to condition I, the gas velocity and energy at the ignition outlet increased, which would be beneficial for initial ignition, and the gas pressure and temperature at the throat increased as well, indicating that the structural strength at the throat should be evaluated.
The gas flow, gas pressure, and gas temperature at the ignition outlet decreased compared to working condition I, yet the changes were small and would have minimal effect on the ignition performance.
During the pressure increase process in the combustion chamber, the gas pressure, velocity, temperature, flow, and energy at the ignition outlet experienced a steady stage in both working conditions before coming to an inflection point.
The inflection point under condition II is smaller than that under condition I.
To improve the ignition reliability, the working pressure of the ignition device should be further increased.
American Psychological Association (APA)
Chang, Jiang& Wu, Gongping& Tang, Hanwei. 2018. Influence of Ignition Channel on the Ignition Performance of Ignition Device. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1207399
Modern Language Association (MLA)
Chang, Jiang…[et al.]. Influence of Ignition Channel on the Ignition Performance of Ignition Device. Mathematical Problems in Engineering No. 2018 (2018), pp.1-14.
https://search.emarefa.net/detail/BIM-1207399
American Medical Association (AMA)
Chang, Jiang& Wu, Gongping& Tang, Hanwei. Influence of Ignition Channel on the Ignition Performance of Ignition Device. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1207399
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1207399