Finite Element Analysis and Validation for Dimpled Tube Type Intercooler Using Homogenization Method

균질화 기법을 이용한 딤플 튜브형 인터쿨러의 유한요소해석 및 검증

  • 이현민 (부산대학교 대학원 항공우주공학과) ;
  • 허성찬 (부산대학교 대학원 항공우주공학과) ;
  • 송우진 (부산대학교 산학협력단) ;
  • 구태완 (부산대학교 항공우주공학과) ;
  • 강범수 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 항공우주공학과)
  • Published : 2009.02.01


Three-dimensional finite-element methods(FEM) have been used to analyze the thermal stress of an exhaust gas recirculation(EGR) cooler due to thermal and pressure load. Since efficiency and capability of the heat exchanger are mainly dependent on net heat transferring area of the EGR cooler system, the tube inside the system has a numerous dimples on the surface. Thus for finite element analysis, firstly the dimple-typed tube is modeled as a plain element without the dimple, and then the equivalent thermal conductivities and elastic modulus are calculated. This work describes the numerical homogenization procedure of the dimple-typed tube and verifies the equivalent material properties by comparison of a single unit and the actual full model. Finally, the homogenization scheme presented in this study can be efficiently applied to finite element analyses for the thermal stress and deformation behavior of the EGR cooler system with the dimple-typed tube.


Homogenization Method;Equivalent Material Property;Dimpled Tube Type Intercooler;FEA


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  1. Design and Performance Evaluation of Dimpled EGR Cooler vol.34, pp.3, 2010,