Simulation Research on Pressure Control Performance of Thermodynamic Venting System of Rocket Propellant Tank
This article described the composition and working principle of the thermodynamic venting system (TVS) for the in-orbit management of cryogenic propellants. Based on the volume of fluid (VOF) multiphase model, a user-defined function (UDF) was compiled to consider the heat and mass transfer phenomen...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2019-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.03.109 |
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| Summary: | This article described the composition and working principle of the thermodynamic venting system (TVS) for the in-orbit management of cryogenic propellants. Based on the volume of fluid (VOF) multiphase model, a user-defined function (UDF) was compiled to consider the heat and mass transfer phenomena inside the tank, and computational fluid dynamics (CFD) was applied to simulate the pressure evolution and temperature field distribution in the tank during the TVS operation. A comparison study showed that the CFD model could well simulate the characteristics of the TVS, which might verify the effectiveness of the CFD approach in analyzing TVS performance. Moreover, the variable conditions of different initial liquid filling rate, throttling ratios, and other influencing factors were simulated to reveal the working rules of the TVS. The pressure control performance of the TVS under microgravity was also calculated. The feasibility of the TVS under microgravity was verified, and its operational rules were obtained. |
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| ISSN: | 0253-4339 |