UNSTEADY STATE SIMULATION OF BUBBLING FLUIDIZED BED BY CFD

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HOSSEINI SH.; RAHIMI R.; ZIVDAR M.; SAMIMI A.

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Paper Information

Journal: JOURNAL OF SEPARATION AND TRANSPORT PHENOMENA (JOURNAL OF SCHOOL OF ENGINEERING) Year:2010 | Volume:21 | Issue:1 Page(s): 13-30

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Title

UNSTEADY STATE SIMULATION OF BUBBLING FLUIDIZED BED BY CFD

Author(s)

HOSSEINI SH. | RAHIMI R. | ZIVDAR M. | SAMIMI A. | Issue Writer Certificate

Keywords

HYDRODYNAMICSQ3

BUBBLING FLUIDIZED BEDQ3

CFDQ3

TFMQ3

Abstract

Gas–solid fluidized bed reactors have many industrial applications. HYDRODYNAMICS of these systems requires more investigation due to their complexity of behaviors. In this study, the 2D HYDRODYNAMICS of fluidized bed containing 275 mm spherical glass beads was investigated by using CFD analysis. The simulation of fluidized bed, carried out using the two-fluid model combined with kinetic theory of granular flow for description of rheology of solid phase as a pseudo fluid. Whilst the superficial gas velocity were set on the range of 0.1–0.46 m/s. For the system of dense gas-solid fluidized bed, an algebraic granular energy-balance equation is proposed for determining the granular temperature instead of solving the full granular energy balance equation. This simplification does not lead to different results, but significantly reduces the computational effort of the simulation. The CFD simulation results were qualitatively and quantitatively compared with the literature. These comparisons show the good agreement between them. Particles velocity and volume fraction profiles predicted by CFD code were studied to increase insight of the transport phenomena and some physical phenomena such as particles erosion in these systems.

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بررسی هیدرودینامیک بستر سیال با استفاده از دینامیک سیالات محاسباتی CFD

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APA: Copy

HOSSEINI, SH., RAHIMI, R., ZIVDAR, M., & SAMIMI, A.. (2010). UNSTEADY STATE SIMULATION OF BUBBLING FLUIDIZED BED BY CFD. JOURNAL OF SEPARATION AND TRANSPORT PHENOMENA (JOURNAL OF SCHOOL OF ENGINEERING), 21(1), 13-30. SID. https://sid.ir/paper/196186/en

Vancouver: Copy

HOSSEINI SH., RAHIMI R., ZIVDAR M., SAMIMI A.. UNSTEADY STATE SIMULATION OF BUBBLING FLUIDIZED BED BY CFD. JOURNAL OF SEPARATION AND TRANSPORT PHENOMENA (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2010;21(1):13-30. Available from: https://sid.ir/paper/196186/en

IEEE: Copy

SH. HOSSEINI, R. RAHIMI, M. ZIVDAR, and A. SAMIMI, “UNSTEADY STATE SIMULATION OF BUBBLING FLUIDIZED BED BY CFD,” JOURNAL OF SEPARATION AND TRANSPORT PHENOMENA (JOURNAL OF SCHOOL OF ENGINEERING), vol. 21, no. 1, pp. 13–30, 2010, [Online]. Available: https://sid.ir/paper/196186/en

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