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NONUNIFORM FLOWS IN AXIAL COMPRESSORS DUE TO TIP CLEARANCE VARIATION.

Author(s) : HORLOCK J. H., GREITZER E. M.

Summary

AN APPROXIMATE ANALYSIS IS PRESENTED FOR THE ASYMMETRIC VELOCITY NONUNIFORMITIES THAT CAN EXIST IN AN AXIAL COMPRESSOR DUE TO VARIATIONS IN TIP CLEARANCE AROUND THE CIRCUMFERENCE. CALCULATIONS HAVE BEEN CARRIED OUT FOR SEVERAL DIFFERENT COMPRESSOR CONFIGURATIONS, AS WELL AS FOR BOTH ROTATING (FIXED TO ROTOR) AND STATIONARY CLEARANCE VARIATIONS. FOR A GIVEN COMPRESSOR, THE RATIO OF VARIATION IN AXIAL VELOCITY TO VARIATION IN PRESSURE RISE COEFFICIENT DUE TO ASYMMETRIC CLEARANCE INCREASES AS FLOW DECREASES, ALTHOUGH THIS TREND IS NOT NECESSARILY TRUE FOR THE MAGNITUDE OF ACTUAL VELOCITY NONUNIFORMITY.

Details

  • Original title: NONUNIFORM FLOWS IN AXIAL COMPRESSORS DUE TO TIP CLEARANCE VARIATION.
  • Record ID : 1984-0530
  • Languages: English
  • Publication date: 1983
  • Source: Source: Proc. Inst. mech. Eng.
    197; part. C; 1983.09; 173-178; 5 fig.; 8 ref.; 2 append.
  • Document available for consultation in the library of the IIR headquarters only.

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