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Volume 40 Issue 4
Apr.  2014
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Journal of Beijing University of Aeronautics and Astronautics  > 2014  >  40(4): 439-443.
Ma Gang, Sun Xiaojun, Luo Xianhai, et al. Numerical simulation analysis of steady-state properties of gas face and cylinder film seal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(4): 439-443. doi: 10.13700/j.bh.1001-5965.2013.0322(in Chinese)
Citation: Ma Gang, Sun Xiaojun, Luo Xianhai, et al. Numerical simulation analysis of steady-state properties of gas face and cylinder film seal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(4): 439-443. doi: 10.13700/j.bh.1001-5965.2013.0322(in Chinese)
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Numerical simulation analysis of steady-state properties of gas face and cylinder film seal

doi: 10.13700/j.bh.1001-5965.2013.0322

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 05 Jun 2013
  • Publish Date: 20 Apr 2014
    Abstract
  • Aimed at the special condition of fluidic dynamic seals of high speed fluid machineries such as the aero-engine, a new type of sealing form, gas face and cylinder film seal was proposed. According to the structure characteristics of the gas film seal, the mathematical analysis model of the gas face and cylinder film seal was built. Then the model of gas film's three-dimensional flow field was numerically calculated by Fluent in the form of turbulent flow. The influence of sealing geometry structure parameters on the stability performances of the seal such as face opening force Fd, cylindrical opening force Fc, leakage Q, and friction torque M was studied. The geometry structure parameters include gas face film thickness, face groove depth ratio, cylindrical film thickness, cylindrical eccentricity, cylindrical groove depth ratio, and cylindrical groove width ratio.

     

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