| 1G and microgravity tank self-pressurization: Research on cryogenic fluid thermal stratification | |
Zhang, M. ; Liu QS(刘秋生)
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| Corresponding Author | Zhang, M.([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF THERMAL SCIENCES
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| 2024-02-01 | |
| Volume | 196Pages:21 |
| ISSN | 1290-0729 |
| Abstract | A correlation numerical model was constructed, and relevant experiments were simulated to investigate the influence of gravity level on the self-pressurization process of the cryogenic fluid of liquid nitrogen. The calculated results agreed well with the experimental data. On this basis, the influences of a normal gravity environment and a microgravity environment on the self-pressurization process of liquid nitrogen in the normaltemperature fluid Perfluoro-n-Pentane (PnP, or C5F12) tank of National Aeronautics and Space Administration (NASA) were analyzed. According to the calculation results, an explicit horizontal interface is formed between the gas and liquid phases in the tank during the 1G (G = 9.81 m/s2) self-pressurization process. The ullage pressure increases as time progresses, and obvious thermal stratification phenomena are observed in the ullage along the axial and radial directions. However, the thermal stratification of the liquid zone is not obvious. The ullage near the gas-liquid interface shifts from counterclockwise movement to clockwise movement, while the liquid changes from clockwise movement to counterclockwise movement. In the process of microgravity selfpressurization, the gas-liquid interface in the tank presents an irregular shape, and the ullage pressure increases continuously before 400 s and then tends to be stable. The axial thermal stratification of fluid in the tank tends to disappear as time progresses, but obvious radial thermal stratification is observed. The ullage in the tank moves up and down as a response to the Marangoni migration effect. The temperature of the liquid zone in the tank during 1G self-pressurization tends to be consistent more quickly than that during microgravity selfpressurization, and the average temperature is higher. However, the temperature reduction rate of the ullage in the tank during microgravity self-pressurization is higher than that during 1G self-pressurization. Numerical simulation results can provide references to further study the on-orbit pressure control technique of cryogenic liquid tanks. |
| Keyword | Self-pressurization Cryogenic fluid Thermal stratification Two-phase flow Microgravity |
| DOI | 10.1016/j.ijthermalsci.2023.108722 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001097653900001 |
| WOS Keyword | TURBULENCE |
| WOS Research Area | Thermodynamics ; Engineering |
| WOS Subject | Thermodynamics ; Engineering, Mechanical |
| Funding Project | National Natural Science Foundation of China[11532015] ; National Natural Science Foundation of China[U1738119] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Zhang, M. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93500 |
| Collection | 微重力重点实验室 |
| Recommended Citation GB/T 7714 | Zhang, M.,Liu QS. 1G and microgravity tank self-pressurization: Research on cryogenic fluid thermal stratification[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2024,196:21.Rp_Au:Zhang, M. |
| APA | Zhang, M.,&刘秋生.(2024).1G and microgravity tank self-pressurization: Research on cryogenic fluid thermal stratification.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,196,21. |
| MLA | Zhang, M.,et al."1G and microgravity tank self-pressurization: Research on cryogenic fluid thermal stratification".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 196(2024):21. |
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