The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Design Optimization of a Centrifugal Compressor Impeller Considering the Meridional Plane

자오면 형상을 고려한 원심압축기 임펠러 최적설계

  • 김진혁 (인하대학교 대학원 기계공학과) ;
  • 최재호 (삼성테크윈 파워시스템연구소) ;
  • 김광용 (인하대학교 기계공학부)
  • Received : 2008.12.11
  • Accepted : 2009.04.06
  • Published : 2009.06.01
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Abstract

In this paper, shape optimization based on three-dimensional flow analysis has been performed for impeller design of centrifugal compressor. To evaluate the objective function of an isentropic efficiency, Reynolds-averaged Navier-Stokes equations are solved with SST (Shear Stress Transport) turbulence model. The governing equations are discretized by finite volume approximations. The optimization techniques based on the radial basis neural network method are used for the optimization. Latin hypercube sampling as design of experiments is used to generate thirty design points within design space. Sequential quadratic programming is used to search the optimal point based on the radial basis neural network model. Four geometrical variables concerning impeller shape are selected as design variables. The results show that the isentropic efficiency is enhanced effectively from the shape optimization by the radial basis neural network method.

Keywords

References

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Cited by

  1. vol.13, pp.1, 2010, https://doi.org/10.5293/KFMA.2010.13.1.059
  2. Shape Optimization of Impeller Blades for 15,000 HP Centrifugal Compressor Using Fluid Structural Interaction Analysis vol.38, pp.6, 2014, https://doi.org/10.3795/KSME-B.2014.38.6.547