Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine
Pasty rocket engines have broad application prospects in the aerospace field. To study the internal ballistic characteristics of the pasty propellant rocket engine, the burning surface change model of pasty propellant was built. The calculation program was developed to calculate the pressure evoluti...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9952209 |
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| _version_ | 1832560561599021056 |
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| author | Xinyou Shan Yingkun Li Xiong Chen Yan Wu Yong He Weixuan Li |
| author_facet | Xinyou Shan Yingkun Li Xiong Chen Yan Wu Yong He Weixuan Li |
| author_sort | Xinyou Shan |
| collection | DOAJ |
| description | Pasty rocket engines have broad application prospects in the aerospace field. To study the internal ballistic characteristics of the pasty propellant rocket engine, the burning surface change model of pasty propellant was built. The calculation program was developed to calculate the pressure evolution in the combustion chamber, and the experiment was carried out based on a pasty propellant rocket test system. The data calculated by the program are in good agreement with the experiment, the error of the initial pressure peak is only 4.02%, and the internal ballistic characteristics of the rocket engine at each stage were analyzed detailly. The effects of ignition delay time, transport pipeline structure, free volume of the combustion chamber, mass flow rate, and flow velocity of the pasty propellant on internal ballistic characteristics of the pasty propellant rocket engine are investigated. The results indicate that when the ignition delay time increases, the pressure rises faster and the initial pressure peak increases obviously. The transport pipe diameter changes from 11.3 mm to 7.4 mm, and the initial combustion time and residual propellant combustion time decreased by 41.3% and 36.0%. The reduction of the free volume of the combustion chamber can reduce the initial pressure peak and the time to reach the equilibrium pressure. The initial pressure spike and equilibrium pressure rise with the increase of the pasty propellant flow velocity. While the ignition transient decreased with the increase of the pasty propellant flow velocity. The internal ballistic properties can be improved by reducing the ignition delay time, the diameter of the transport pipeline, and the free volume of the combustion chamber, or by increasing the mass flow rate of the pasty propellant rocket engine. |
| format | Article |
| id | doaj-art-e6863978705849ac864cbc4b30e76474 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-e6863978705849ac864cbc4b30e764742025-02-03T01:27:20ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/99522099952209Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket EngineXinyou Shan0Yingkun Li1Xiong Chen2Yan Wu3Yong He4Weixuan Li5School of Mechanical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, ChinaPasty rocket engines have broad application prospects in the aerospace field. To study the internal ballistic characteristics of the pasty propellant rocket engine, the burning surface change model of pasty propellant was built. The calculation program was developed to calculate the pressure evolution in the combustion chamber, and the experiment was carried out based on a pasty propellant rocket test system. The data calculated by the program are in good agreement with the experiment, the error of the initial pressure peak is only 4.02%, and the internal ballistic characteristics of the rocket engine at each stage were analyzed detailly. The effects of ignition delay time, transport pipeline structure, free volume of the combustion chamber, mass flow rate, and flow velocity of the pasty propellant on internal ballistic characteristics of the pasty propellant rocket engine are investigated. The results indicate that when the ignition delay time increases, the pressure rises faster and the initial pressure peak increases obviously. The transport pipe diameter changes from 11.3 mm to 7.4 mm, and the initial combustion time and residual propellant combustion time decreased by 41.3% and 36.0%. The reduction of the free volume of the combustion chamber can reduce the initial pressure peak and the time to reach the equilibrium pressure. The initial pressure spike and equilibrium pressure rise with the increase of the pasty propellant flow velocity. While the ignition transient decreased with the increase of the pasty propellant flow velocity. The internal ballistic properties can be improved by reducing the ignition delay time, the diameter of the transport pipeline, and the free volume of the combustion chamber, or by increasing the mass flow rate of the pasty propellant rocket engine.http://dx.doi.org/10.1155/2021/9952209 |
| spellingShingle | Xinyou Shan Yingkun Li Xiong Chen Yan Wu Yong He Weixuan Li Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine International Journal of Aerospace Engineering |
| title | Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine |
| title_full | Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine |
| title_fullStr | Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine |
| title_full_unstemmed | Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine |
| title_short | Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine |
| title_sort | investigations on internal ballistic characteristics of pasty propellant rocket engine |
| url | http://dx.doi.org/10.1155/2021/9952209 |
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