Skip to main content
SpringerLink
Log in

Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method

  • Research Article
  • Published:
Frontiers of Chemical Engineering in China Aims and scope Submit manuscript

Abstract

A discrete element method (DEM)-computational fluid dynamics (CFD) two-way coupling method was employed to simulate the hydrodynamics in a two-dimensional spouted bed with draft plates. The motion of particles was modeled by the DEM and the gas flow was modeled by the Navier-Stokes equation. The interactions between gas and particles were considered using a twoway coupling method. The motion of particles in the spouted bed with complex geometry was solved by combining DEM and boundary element method (BEM). The minimal spouted velocity was obtained by the BEMDEM-CFD simulation and the variation of the flow pattern in the bed with different superficial gas velocity was studied. The relationship between the pressure drop of the spouted bed and the superficial gas velocity was achieved from the simulations. The radial profile of the averaged vertical velocities of particles and the profile of the averaged void fraction in the spout and the annulus were statistically analyzed. The flow characteristics of the gas-solid system in the two-dimensional spouted bed were clearly described by the simulation results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Jin Y, Zhu J X, Wang Z W, Yu Z Q. Fluidization engineering principles. Beijing: Tsinghua University Press, 2001: 360–396 (in Chinese)

    Google Scholar 

  2. Pham Q T. Behavior of a conical spouted dryer for animal blood. Can J Chem Eng, 1983, 61: 426–434

    CAS  Google Scholar 

  3. Pavarini P J, Coury JR. Granulation of an insoluble powder in a spouted bed. Powder Technol, 1987, 53: 97–103

    Article  CAS  Google Scholar 

  4. Kucharski J, Kmiec A. Hydrodynamics, heat and mass transfer during coating of tablets in a spouted bed. Can J Chem Eng, 1983, 61: 435–439

    Article  CAS  Google Scholar 

  5. Kalwar M I, Raghavan G S V, Mujumdar A S. Spouting of two-dimensional beds with draft plates. Can J Chem Eng, 1992, 70: 887–894

    CAS  Google Scholar 

  6. Kalwar M I, Raghavan G S V, Mujumdar A S. Circulation of particles in two-dimensional spouted bed with draft plates. Powder Technol, 1993, 77: 233–242

    Article  CAS  Google Scholar 

  7. Kalwar MI, Raghavan G S V. Batch drying of shelled corn in two-dimensional spouted beds with draft plates. Drying Technol, 1993, 11: 339–354

    Article  Google Scholar 

  8. Luo B L, Freitas L A P, Lim C J, Grace J R. Flow characteristics of two-dimensional spouted beds with draft plates. Engineering Chemistry & Metallurgy, 2000, 21: 369–374 (in Chinese)

    CAS  Google Scholar 

  9. Cundall P A, Strack O D L. A discrete numerical model for granular assemblies. Geotechnique, 1979, 29: 47–65

    Article  Google Scholar 

  10. Iishita K, Oda M. Rolling resistance at contacts in simulation of shear band development by DEM. J Eng Mech, ASCE, 1998, 124: 285–292

    Article  Google Scholar 

  11. Tsuji Y, Kawaguchi T, Tanaka T. Discrete particle simulation of two dimensional fluidized bed. Powder Technol, 1993, 77: 79–87

    Article  CAS  Google Scholar 

  12. Hoomans B P B, Kuipers J A M, Briels W J, van Swaaij W P M. Discrete particle simulation of bubble and slug formation in a two-dimensional gas-fluidized bed: a hard sphere approach. Chem Eng Sci, 1996, 51: 99–118

    Article  CAS  Google Scholar 

  13. Xu BH, Yu A B. Numerical simulation of the gas-particle flow in a fluidized bed by combining discrete particle method with computational fluid dynamics. Chem Eng Sci, 1997, 52: 2785–2809

    Article  CAS  Google Scholar 

  14. Zhao Y, Cheng Y, Jin Y. CFD-DEM simulation of clustering phenomena in riser and downer. J Chem Ind Eng (China), 2007, 58: 44–53 (in Chinese)

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, 310027, China

    Yongzhi Zhao & Maoqiang Jiang

  2. Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China

    Yi Cheng & Yong Jin

Authors
  1. Yongzhi Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yi Cheng
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Maoqiang Jiang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yong Jin
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yi Cheng.

Additional information

__________

Translated from Chemical Engineering (China), 2007, 35(6): 24–28 [译自: 化学工程]

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhao, Y., Cheng, Y., Jiang, M. et al. Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method. Front. Chem. Eng. China 2, 5–9 (2008). https://doi.org/10.1007/s11705-008-0009-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11705-008-0009-0

Keywords

Search

Navigation