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Research on the Oscillation Characteristic and Flow Pattern Transition Threshold of Cryogenic Liquid Oxygen Jet Condensation
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Chengfeng Zhu1, 2, Yuanyuan Xu1, Gang Lei1, Yanzhong Li1, 2, Lei Wang2
Journal of Refrigeration | 2025, 46(5) : 142 - 156
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Journal of Refrigeration | 2025, 46(5): 142-156
Research on the Oscillation Characteristic and Flow Pattern Transition Threshold of Cryogenic Liquid Oxygen Jet Condensation
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Chengfeng Zhu1, 2, Yuanyuan Xu1, Gang Lei1, Yanzhong Li1, 2, Lei Wang2
Affiliations
  • 1.State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing, 100076, China
  • 2.School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
Published: 2025-10-16 doi: 10.12465/j.issn.0253-4339.2025.05.142
Outline
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Cryogenic liquid fuel launch vehicles encounter longitudinal unstable vibrations during flight, which is a serious threat to the normal operation of rockets. Such vibrations exhibit typical low-frequency characteristics and often occur during the jet condensation of cryogenic liquid oxygen in propellant pipelines. To solve this problem at the source, the characteristics of the jet condensation oscillation and flow pattern transition must be investigated. Based on the height function method, a modified mass transfer model was used to dynamically capture the interfacial curvature. The relationship between the condensation pulsation frequency and two-phase interfacial curvature was established, and the frequency of the pressure oscillation was found to be 9.8-10.6 Hz. The results indicated that three typical types of jet condensation oscillations exist: stable pulsation, gas plume oscillation, and suck-back flow. The pressure amplitude of the suck-back and oscillation flows was up to 130 kPa, whereas that of the stable pulsation was only 1-3 kPa. From the dimensional analysis, the transition threshold of the flow pattern was Jc*=7.3 when dimensionless structure parameter L*=2.2. When Jc*>7.3, a suck-back oscillating flow pattern appeared. The dimensionless criterion could precisely predict the condensation flow pattern. This provides a theoretical basis and technical support for the design of cryogenic liquid fuel rockets.

cryogenic liquid oxygen  /  jet condensation oscillation  /  flow pattern transition  /  gas-liquid interface  /  flow instability
Chengfeng Zhu, Yuanyuan Xu, Gang Lei, Yanzhong Li, Lei Wang. Research on the Oscillation Characteristic and Flow Pattern Transition Threshold of Cryogenic Liquid Oxygen Jet Condensation[J]. Journal of Refrigeration, 2025 , 46 (5) : 142 -156 . DOI: 10.12465/j.issn.0253-4339.2025.05.142
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  • Fund of the State Key Laboratory of Technologies in Space Cryogenic Propellants(SKLTSCP202207)
Appendix
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Year 2025 volume 46 Issue 5
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Article Info
doi: 10.12465/j.issn.0253-4339.2025.05.142
  • Receive Date：2024-06-04
  • Online Date：2026-03-13
  • Published：2025-10-16
Article Data
Affiliations
History
  • Received：2024-06-04
  • Revised：2024-07-18
  • Accepted：2024-09-02
Funding
Fund of the State Key Laboratory of Technologies in Space Cryogenic Propellants(SKLTSCP202207)
Affiliations
    1.State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing, 100076, China
    2.School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China

Corresponding:

Li Yanzhong, male, professor, School of Energy and Power Engineering, Xi'an Jiaotong University, 86-29-82668738, E-mail: . Research fields: cryogenic propellant technology for aerospace, cryogenic two-phase flow heat transfer.
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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