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
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
摘要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.
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.
LI Zhang-Guo;LIU Qiu-Sheng;LIU Rong;HU Wei;DENG Xin-Yu. Influence of Rayleigh-Taylor Instability on Liquid Propellant Reorientation in a Low-Gravity Environment[J]. 中国物理快报, 2009, 26(11): 114701-114701.
LI Zhang-Guo, LIU Qiu-Sheng, LIU Rong, HU Wei, DENG Xin-Yu. Influence of Rayleigh-Taylor Instability on Liquid Propellant Reorientation in a Low-Gravity Environment. Chin. Phys. Lett., 2009, 26(11): 114701-114701.
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2009, Vol. 26 
