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LBE–DEM simulation of inter-phase heat transfer in gas–solid cross jets

  • Article
  • Engineering Thermophysics
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Chinese Science Bulletin

Abstract:

Lattice-Boltzmann equation (LBE)–Discrete element method (DEM) coupled simulation of a two-dimensional gas–solid cross jet is performed, focusing on the gas-particle two-way coupling effect on heat transfer characteristics. The Reynolds number is 1000, and particle Stokes numbers are 10, 25, and 50 under the same number flow rate of particles. The gas phase temperature field and particle distribution as well as the inter-phase heat transfer characteristics are studied and analyzed. The dominating effects, i.e. the mean temperature difference and mean heat transfer coefficient between the gas–solid phases, for the pre- and post- collision stages of the cross jets are illustrated respectively. The change of dominating roles is related to the dynamical response characteristics of particles.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (51106180) and the China Postdoctoral Science Foundation (2013M540964).

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Authors and Affiliations

  1. Department of Thermal Power Engineering, College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, 102249, China

    Nan Gui, Wenkai Xu & Liang Ge

  2. China Academy of Space Technology, Beijing, 100094, China

    Jie Yan

Authors
  1. Nan Gui
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  2. Wenkai Xu
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  3. Liang Ge
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  4. Jie Yan
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Corresponding author

Correspondence to Nan Gui.

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Gui, N., Xu, W., Ge, L. et al. LBE–DEM simulation of inter-phase heat transfer in gas–solid cross jets. Chin. Sci. Bull. 59, 2486–2495 (2014). https://doi.org/10.1007/s11434-014-0285-7

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  • DOI: https://doi.org/10.1007/s11434-014-0285-7

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