한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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곡관부 열전달 성능 강화를 위한 에어포일형 가이드 베인의 형상 최적설계

SHAPE OPTIMIZATION OF THE AIRFOIL-GUIDE VANES IN THE TURNING REGION FOR A ROTATING TWO-PASS CHANNEL

  • Moon, M.A. (Dept. of Mechanical Engineering, Inha Univ.) ;
  • Kim, K.Y. (Dept. of Mechanical Engineering, Inha Univ.)
  • 투고 : 2011.09.02
  • 심사 : 2012.05.18
  • 발행 : 2012.06.30
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초록

This paper presents the numerical simulation results of heat transfer and friction loss for a rotating two-pass duct with the airfoil-guide vanes in the turning region. The Kriging model is used as an optimization technique with Reynolds-averaged Navier-Stokes analysis of flow field and heat transfer with shear stress transport turbulent model. To improve the heat transfer performance, angle and location of the airfoil-guide vanes have been selected as design variables. The optimization problem has been defined as a minimization of the objective function, which is defined as a linear combination of heat transfer related term and friction loss related term with a weight factor. The airfoil-guide vanes in the turning region keep the high level of heat transfer while the friction loss has a low value. By comparing the presence or absence of airfoil-guide vanes, it is shown that the airfoil-guide vanes exhibited the best heat transfer performance to improve the blade cooling except the first passage.

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참고문헌

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