International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
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Numerical Study of Passive Control with Slotted Blading in Highly Loaded Compressor Cascade at Low Mach Number

  • Accepted : 2010.12.17
  • Published : 2011.03.31
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Abstract

With the aim to increase blade loadings and stable operating range in highly loaded compressors, this article has been conducted to explore, through a numerical parametric study, the potential of passive control using slotted bladings in cascade configurations. The objective of this numerical investigation is to analyze the influence of location, width and slope of the slots and therefore identify the optimal configuration. The approach is based on two dimensional cascade geometry, low speed regime, steady state and turbulent RANS model. The results show the efficiency of this passive technique to delay separation and enhance aerodynamic performances of the compressor cascade. A maximum of 28.3% reduction in loss coefficient have been reached, the flow turning is increased with approximately $5^0$ and high loading over a wide range of angle of attack have been obtained for the optimized control parameter.

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References

  1. Rockenbach, R.W., Brent, J.A., and Jones, B.A., 1970, "Single Stage Experimental Evaluation of Compressor Blading with Slots and Vortex Generators, Part I- Analysis and Design of Stages 4 and 5," NASA CR-72626, PWA FR-3461.
  2. Rockenbach, R. W., and Jones, B.A., 1970, "Single Stage Experimental Evaluation of Compressor Blading with Slots and Wall Flow Fences," NASA CR-72635, PWA FR-3597.
  3. Rockenbach, R.W., 1968, "Single Stage Experimental Evaluation of Slotted Rotor and Stator Blading, Part IX- Final Report," CR-54553, PWA FR-2289.
  4. Linder, C.G., and Jones, B.A., 1966, "Single Stage Experimental Evaluation of Slotted Rotor and Stator Blading, Part IAnalysis and Design," NASA CR-54544, PWA FR-1713.
  5. Linder, C.G., and Jones, B.A., 1966, "Single Stage Experimental Evaluation of Slotted Rotor and Stator Blading, Part III- Data and Performance for Slotted Rotor 1," NASA CR-54546, PWA FR-2110.
  6. Linder, C.G., and Jones, B.A., 1966, "Single Stage Experimental Evaluation of Slotted Rotor and Stator Blading, Part VI- Data and Performance for Slotted Stator 1 and Flow Generation Rotor," NASA CR-54549, PWA FR-2286.
  7. Emery, J.C., Herrig, L.J., Erwin, J.R., and Felix, A.R., 1958, "Systematic Two-Dimensional Cascade of NACA 65-Series Compressor Blades at low Speeds," NASA report 1368.
  8. Wennerstrom, C.G., 1990, "Highly Loaded Axial Flow Compressors: History and Current Developments," ASME Journal of Turbomachinery, Vol. 112, pp. 567-578. https://doi.org/10.1115/1.2927695
  9. Zhou, M., Wang, R., Bai, Y., Zeng, L., 2008, "Numerical research on effect of stator blade slot treatment on single stage compressor characteristic" Acta Aerodynamica Sinica, Vol. 26, No. 3, 0258-25(2008)03-0400-05.
  10. Zhou, M., Wang, R., Cao, Z., Zhang, X., 2009, " Effect of slot position and slot structure on performance of cascade" Acta Aerodynamica Sinica, Vol. 27,No. 1,0258-1825(2009)01-0114-05.

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  1. Effects of slot jet and its improved approach in a high-load compressor cascade vol.58, pp.11, 2017, https://doi.org/10.1007/s00348-017-2437-4
  2. Effect of Slot at Blade Root on Compressor Cascade Performance under Different Aerodynamic Parameters vol.6, pp.12, 2016, https://doi.org/10.3390/app6120421