Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL ANALYSIS ON PRESSURE DROP IN EXPANDED BED ACCORDING TO TUBE-TO-PARTICLE RATIOS AND REYNOLDS NUMBERS

Expanded bed에서 레이놀즈수와 직경입자비에 따른 압력강하 특성에 관한 수치적 연구

  • 배세욱 (인하대학교 대학원 항공우주공학과) ;
  • 성형건 (인하대학교 대학원 항공우주공학과) ;
  • 노태성 (인하대학원 항공우주공학과)
  • Received : 2010.12.31
  • Accepted : 2011.06.22
  • Published : 2011.06.30
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Abstract

Characteristics of the pressure drop in an expanded bed have been compared to those in a packed bed for numerical study of the interphase drag in gas-particle flows. A numerical analysis of the pressure drop by the particle drag has been conducted according to the tube-to-particle diameter ratios and Reynolds numbers for comparison. As the tube-to-particle diameter ratios increase at the same Reynolds number, the pressure drop tends to converge. It has been confirmed that characteristics of the pressure drop in the expanded bed are similar to those in the packed bed.

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References

  1. 1952, Ergun, S. "Fluid flow through packed columns," Chemical Engineering Progress, 48 pp.88-94.
  2. 2008, Rupesh K. Reddy et al, "CFD modeling of pressure drop and drag coefficient in fixed and expanded beds," Chemical engineering research and design, vol.86, pp.444-453. https://doi.org/10.1016/j.cherd.2007.12.007
  3. 1993, Tsuji Y., Kawaguchi T. and Tanaka T., "Discrete particle simulation of two dimensional fluidzed bed," Power Tech., Vol.77, pp.79-87. https://doi.org/10.1016/0032-5910(93)85010-7
  4. 1993, M. Syamlal, W. Rogers, and T. J. O.Brien, "MFIX Documentation: Volume 1, Theory Guide," National Technical Information Service.
  5. 2001, Eisfeld, B. and Schnitzlein, K., "The influence of confining walls on the pressure drop in packed beds," Chem Eng Sci., Vol.56, pp.4321-4329. https://doi.org/10.1016/S0009-2509(00)00533-9