한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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MRA와 POD를 적용한 공력특성 최적설계

MRA AND POD APPLICATION FOR AERODYNAMIC DESIGN OPTIMIZATION

  • 구본찬 (한양대학교 기계공학과) ;
  • 한준희 (한양대학교 기계공학과) ;
  • 조태현 (한양대학교 기계설계공학과) ;
  • 박경현 (삼성전기 중앙연구소 기반기술팀 CAE그룹) ;
  • 이도형 (한양대학교 기계공학과)
  • Koo, B.C. (Dept. of Mechanical Engineering, Hanyang Univ.) ;
  • Han, J.H. (Dept. of Mechanical Engineering, Hanyang Univ.) ;
  • Jo, T.H. (Dept. of Mechanical Design Engineering, Hanyang Univ.) ;
  • Park, K.H. (Samsung Electro-Mechanics CAE Group) ;
  • Lee, D.H. (Dept. of Mechanical Engineering, Hanyang Univ.)
  • 투고 : 2015.04.07
  • 심사 : 2015.06.08
  • 발행 : 2015.06.30
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초록

This paper attempts to evaluate the accuracy and efficiency of a design optimization procedure by combining wavelets-based multi resolution analysis method and proper orthogonal decomposition (POD) technique. Aerodynamic design procedure calls for high fidelity computational fluid dynamic (CFD) simulations and the consideration of large number of flow conditions and design constraints. Thus, even with significant computing power advancement, current level of integrated design process requires substantial computing time and resources. POD reduces the degree of freedom of full system by conducting singular value decomposition for various field simulations. In this research, POD combined Design Optimization model is proposed and its efficiency and accuracy are to be evaluated. For additional efficiency improvement of the procedure, multi resolution analysis method is also being employed during snapshot constructions (POD training period). The proposed design procedure was applied to the optimization of wing aerodynamic performance. Throughout the research, it was confirmed that the POD/MRA design procedure could significantly reduce the total design turnaround time and also capture all detailed complex flow features as in full order analysis.

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참고문헌

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