Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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COMPUTATIONAL ANALYSIS OF THERMAL FLOW WITH VARYING THE DIAMETER AND THE NUMBER OF TUBES IN PULSATING HEAT PIPES

진동형 히트 파이프에서 튜브의 지름과 개수에 따른 전산 열유동해석

  • Han, S.H. (Dept. of Aerospace Engineering, Graduate School, Sunchon National Univ.) ;
  • Choi, J.W. (School of Mechanical and Aerospace Engineering, Sunchon National Univ.) ;
  • Kim, S.C. (School of Mechanical and Aerospace Engineering, Sunchon National Univ.)
  • 한성현 (순천대학교 대학원 우주항공공학과) ;
  • 최종욱 (순천대학교 기계우주항공공학부) ;
  • 김성초 (순천대학교 기계우주항공공학부)
  • Received : 2016.03.03
  • Accepted : 2016.03.31
  • Published : 2016.03.31
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Abstract

In this paper, heat transfer characteristics of pulsating heat pipes are investigated with the diameter and the number of tubes through the computational analysis of thermal flow. The numerical simulation includes the phase change precess with VOF model using OpenFOAM software. The numerical code is modified for the phase change to occur with saturation temperature. The numerical results are compared with the previous ones to validate the present code. The resonable results have been obtained based on the mass transfer time relaxation parameter considering the density ratio. When the ratio of length to diameter and the number of tubes are on the decrease, the thermal resistances also tends to decrease in the pulsating heat pipes. These numerical results will supply the base line data to design and to manufacture the pulsating heat pipe.

Keywords

References

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