›› 2013, Vol. 39 ›› Issue (6): 17-22.doi: 10.3969/j.issn.1674-1579.2013.06.004

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Effect of Refill Flow Rate on Gas-Liquid Distribution in Vane-Type Tank

  

  1. 1. Department of Space Equipment, the Academy of Equipment, Beijing 101416, China; 2. National Key
    Laboratory of Laser Propulsion and Application, the Academy of Equipment, Beijing 101416, China;
    3. Department of Educational Affairs, the Academy of Equipment, Beijing 101416, China
  • Online:2013-12-26 Published:2013-12-19

Abstract: In the microgravity environment, the position of the ullage bubble is uncertain. It’s hard to vent and control the center of mass for the receiver tank on mission of on-orbit refilling. The test tank of NASA FARE II is taken as reference. According to the theory of surface tension tank, calculation model is established. Under the conditions of different refill flow rates, the gas-liquid distribution in the vane-type surface-tension tank is studied with the method of numerical simulation. The hydrazine is chosen as working liquid. Using the CFD(computational fluid dynamics) software Fluent, the process of vane-type tank on-orbit refilling is simulated. Simulation results show that the greater the inflow rate is, the higher the gas-liquid interface protrudes. When the inflow rate exceeds the critical value, liquid is vented. The results can provide reference for the control of refill flow rate.

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