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Wang S, Fu Y, Zhao Y, Dong L, Chen Z. Effect of bed density on the segregation behavior of fine coal particles (<6 mm) in a gas–solid separation fluidized bed. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.10.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang K, Wang S, He Y. Investigation of Interphase Drag Force Affected by Clouded Bubble via a Computational Fluid Dynamics–Discrete Element Method Approach. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kai Zhang
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Shuai Wang
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yurong He
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
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Shrestha S, Zhou Z. Effect of particle shape on bubble dynamics in bubbling fluidized bed. EPJ WEB OF CONFERENCES 2021. [DOI: 10.1051/epjconf/202124906012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Particle shape can significantly affect the bubble dynamics of bubbling fluidized beds (BFB). In this paper, findings obtained from simulations using CFD-DEM are summarized to discuss the effect of particle shape on bubble dynamics and bubble properties such as bubble size, shape and velocity at a single orifice and uniform fluidized bed. Particles with aspect ratios at 0.5 (oblate), 1 (spherical) and 2 (prolate) are employed to represent disc-like, spherical and rod-like particles, respectively. Both single jet and uniform fluidized bed simulations demonstrate that the bubble forming/rising regions, bubble coalescence locations, and bubble splitting phenomena are significantly influenced by particle shape. The CFD-DEM results for bubble size and bubble velocity show good agreement with literature correlations.
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Zhang K, Wang S, Tang Y, He Y, Zhao Y. Evaluation of drag force around bubble in an incipiently fluidized bed via a coupled CFD-DEM approach. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.05.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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