Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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An Application of Multi-Objective Global Optimization Technique for Internally Finned Tube

휜형 원형관의 형상 최적화를 위한 다목적 전역 최적화 기법의 응용

  • Lee, Sang-Hwan (Department of Mechanical Engineering, Hanyang University) ;
  • Lee, Ju-Hee (Department of Mechanical Engineering, Gradual School, Hanyang University) ;
  • Park, Kyoung-Woo (Department of Mechanical Engineering, Hoseo University)
  • 이상환 (한양대학교 기계공학과) ;
  • 이주희 (한양대학교 대학원 기계공학과) ;
  • 박경우 (호서대학교 기계공학과)
  • Published : 2005.10.01
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Abstract

Shape optimization of internally finned circular tube has been peformed for periodically fully developed turbulent flow and heat transfer. The physical domain considered in this study is very complicated due to periodic boundary conditions both streamwise and circumferential directions. Therefore, Pareto frontier sets of a heat exchanger can be acquired by coupling the CFD and the multi-objective genetic algorithm, which is a global optimization technique. The optimal values of fin widths $(d_1,\;d_2)$ and fin height (H) are numerically obtained by minimizing the pressure loss and maximizing the heat transfer rate within ranges of $d_1=0.2\sim1.5\;mm,\;d_2=0.2\sun1.5\;mm,\;and\;H=0.2\sim1.5\;mm$. The optimal values of the design variables are acquired after the fifth generation and also compared to those of a local optimization algorithm for the same geometry and conditions.

Keywords

References

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