| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Influence of Rayleigh-Taylor Instability on Liquid Propellant Reorientation in a Low-Gravity Environment |
| LI Zhang-Guo1, LIU Qiu-Sheng1, LIU Rong1, HU Wei2, DENG Xin-Yu2 |
| 1Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing 1001902Beijing Institute of Astronautical Systems Engineering, Beijing 100076 |
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| Cite this article: |
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LI Zhang-Guo, LIU Qiu-Sheng, LIU Rong et al 2009 Chin. Phys. Lett. 26 114701 |
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Abstract A computational simulation is conducted to investigate the influence of Rayleigh-Taylor instability on liquid propellant reorientation flow dynamics for the tank of CZ-3A launch vehicle series fuel tanks in a low-gravity environment. The volume-of-fluid (VOF) method is used to simulate the free surface flow of gas-liquid. The process of the liquid propellant reorientation started from initially flat and curved interfaces are numerically studied. These two different initial conditions of the gas-liquid interface result in two modes of liquid flow. It is found that the Rayleigh-Taylor instability can be reduced evidently at the initial gas-liquid interface with a high curve during the process of liquid reorientation in a low-gravity environment.
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| Keywords:
47.20.Ma
47.85.L-
47.55.Ca
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Received: 17 August 2009
Published: 30 October 2009
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