Volume 33 Issue 4
Apr.  2018
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Simulation of inner flow characteristics of swirl injector during the filing process[J]. Journal of Aerospace Power, 2018, 33(4): 944-951. doi: 10.13224/j.cnki.jasp.2018.04.021
Citation: Simulation of inner flow characteristics of swirl injector during the filing process[J]. Journal of Aerospace Power, 2018, 33(4): 944-951. doi: 10.13224/j.cnki.jasp.2018.04.021
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Simulation of inner flow characteristics of swirl injector during the filing process

doi: 10.13224/j.cnki.jasp.2018.04.021
  • Received Date: 2016-10-28
  • Publish Date: 2018-04-28
    Abstract
  • Inner flow of fluid (VOF) method was applied in the simulation of inner flow characteristics of a swirl injector during the filling process. The resolution of the phase interface was investigated, the phenomena of the shrink of air core and the rotation of liquid film were discovered. The changes of liquid film thickness and spray angle at the injector outlet during the filling process were calculated by extracting the contours of gas phase volume fraction. The results showed that the liquid film thickness increased along with the outlet mass flow rate, while the spray angle decreased. Besides, the circumfluence in the swirl chamber was described, and the pressure field and velocity field were analyzed, indicating the change of the axial velocity was attributed to the co-effect of pressure drop and gas-liquid interaction.

     

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