Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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A NUMERICAL STUDY ON THE CONJUGATE HEAT TRANSFER OF AN OIL COOLER WITH OFFSET STRIP FINS FOR VARIOUS-FLOW RATES

오일의 유량 변화와 오프셋 스트립 휜을 고려한 오일쿨러의 복합열전달 해석

  • Park, S.W. (Dept. of Mechanical Engineering, Graduate School of Industry, Seoul Nat'l Univ. of Science and Technology) ;
  • Choi, H.G. (Dept. of Mechanical/Automotive Engineering, Seoul Nat'l Univ. of Science and Technology)
  • 박서원 (서울과학기술대학교 산업대학원 기계공학과) ;
  • 최형권 (서울과학기술대학교 기계자동차공학부)
  • Received : 2013.11.22
  • Accepted : 2014.02.18
  • Published : 2014.03.31
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Abstract

Conjugate heat transfer of an automotive oil cooler with offset-strip fins was numerically investigated to predict the performance of the oil cooler for various flow-rates. The simulations were conducted by directly modeling offset-strip fins with unstructured meshes. The incompressible Navier-Stokes equations coupled with energy equation were used for the present simulations. Heat transfer characteristics of the oil cooler was compared well with experimental results and the errors were approximately within 5 percents. It was found that the performance of the oil cooler increased as the flow-rate increased up to the flow-rate of 12 L/min, but the performance seemed to be saturated beyond a critical flow-rate, which was estimated as 15 L/min. Furthermore, it was confirmed that compared to the performance without fins, that of the oil cooler with offset-strip fins was increased by about 75 percents.

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References

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