The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Shape Optimization of a Rotating Two-Pass Duct with a Guide Vane in the Turning Region

회전하는 냉각유로의 곡관부에 부착된 가이드 베인의 형상 최적설계

  • 문미애 (인하대학교 대학원 기계공학과) ;
  • 김광용 (인하대학교 기계공학부)
  • Received : 2010.12.14
  • Accepted : 2011.01.24
  • Published : 2011.02.01
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Abstract

The heat transfer and pressure loss characteristics of a rotating two-pass channel with a guide vane in the turning region have been studied using three-dimensional Reynolds-averaged Navier-Stokes (RANS) analysis, and the shape of the guide vane has been optimized using surrogate modeling optimization technique. For the optimization, thickness, location and angle of the guide vanes have been selected as design variables. The objective function has been defined as a linear combination of the heat transfer and the friction loss related terms with a weighting factor. Latin hypercube sampling has been applied to determine the design points as design of experiments. A weighted-average surrogate model, PBA has been used as the surrogate model. The guide vane in the turning region does not influence the heat transfer in the first passage upstream of the turning region, but enhances largely the heat transfer in the turning region and the second passage. In an example of the optimization, the objective function has been increased by 13.6%.

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References

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