Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL ANALYSIS FOR LONGITUDINAL PITCH EFFECT ON TUBE BANK HEAT TRANSFER

관군 배열에서의 종간 간격이 열전달에 미치는 영향에 대한 수치 해석적 연구

  • Lee, D. (Dept. of Mechanical Engineering, Hongik Univ.) ;
  • Ahn, J. (School of Mechanical Systems Engineering, Kookmin Univ.) ;
  • Shin, S. (Dept. of Mechanical and System design Engineering, Hongik Univ.)
  • 이동균 (홍익대학교 기계공학과) ;
  • 안준 (국민대학교 기계 시스템 공학부) ;
  • 신승원 (홍익대학교 기계.시스템 디자인공학과)
  • Received : 2012.02.15
  • Accepted : 2012.08.27
  • Published : 2012.09.30
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Abstract

In this study, a longitudinal pitch effect on in-line tube bank heat transfer has been analyzed numerically. To verify the accuracy of the solver model and boundary conditions, global Nusselt number(Nu) and pressure drop across the 2 row tube bank are compared with the existing experimental correlations under 500 ~ 2,000 Reynolds number(Re) range. By changing transverse pitch($S_T$) or longitudinal pitch($S_L$) separately in tube bank, we're trying to identify the each effect on heat transfer. We found that the effect of transverse pitch can be accounted for Reynolds number evaluated with maximum velocity($V_{max}$) at the smallest flow area similar to most existing correlations. Variation of the longitudinal pitch($S_L$) has a greater impact on the heat transfer compared to the transverse pitch($S_T$). Overall Nusselt number increases with larger longitudinal pitch($S_L$), however individual Nusselt number of the tube row has significant difference after the first row.

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References

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Cited by

  1. Analytical/Numerical Study of Fluid Flow and Heat Transfer Across In-Line Cylinders vol.30, pp.3, 2012, https://doi.org/10.2514/1.t4668