Volume 27 Issue 5
May  2012
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Article Navigation >  Journal of Aerospace Power  > 2012  >  27(5): 981-985
SUN Ji-ning, LUO Xiang, LIU Jin-nan, XU Guo-qiang, ZHOU Zhi-xiang, QIU Chang-bo. Volume fraction technique for measuring the minimum value of mass flow in turbine rotor-stator disk cavities[J]. Journal of Aerospace Power, 2012, 27(5): 981-985.
Citation: SUN Ji-ning, LUO Xiang, LIU Jin-nan, XU Guo-qiang, ZHOU Zhi-xiang, QIU Chang-bo. Volume fraction technique for measuring the minimum value of mass flow in turbine rotor-stator disk cavities[J]. Journal of Aerospace Power, 2012, 27(5): 981-985.
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Volume fraction technique for measuring the minimum value of mass flow in turbine rotor-stator disk cavities

  • 1.

    National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2.

    China Aviation Powerplant Research Institute, Aviation Industry Corporation of China, Zhuzhou Hunan 412002, China

  • Received Date: 2011-09-27
  • Publish Date: 2012-05-28
    Abstract
  • The minimum value of the cooling air flow is a critical flow rate for preventing hot gas ingestion happened in the rotor-stator disk cavity system of turbines.Experimental investigation based on volume fraction technique was performed to found the minimum values of cooling air flow of six typical rim seal structures with different rotating velocities and seal clearances.The results showed that,the minimum value of the seal air flow rate almost increases linearly with rotational velocity,and also increases with the seal clearance.Furthermore,the corresponding correlations about sealing flow rate were fitted for different structures,and an optimum option of rim seal structure was advised.

     

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    • References(12)
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