International Conference on Recent Advances in Materials, Mechanical and Civil Engineering | |
CFD analysis of hydrodynamic studies of a bubbling fluidized bed | |
材料科学;机械制造;土木建筑工程 | |
Rao, B.J.M.^1 ; Rao, K.V.N.S.^2 ; Janardhana, G Ranga^3 | |
Dept. of Mech. Engg., VFSTR University, Andhra Pradesh | |
522 312, India^1 | |
Dept. of Mech. Engg. B. V. R. I. T, Hyderabad | |
Telangana | |
502313, India^2 | |
Dept. of Mech. Engg., JNTUA, Anantapur | |
Andhra Pradesh | |
51500, India^3 | |
关键词: Bubbling fluidized bed; Computational fluid dynamics simulations; Computational Fluid Dynamics software; Fluidization velocity; Gasification chamber; Hydrodynamic studies; Particle diameters; Static bed height; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/330/1/012090/pdf DOI : 10.1088/1757-899X/330/1/012090 |
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来源: IOP | |
【 摘 要 】
Fluidization velocity is one of the most important parameter to characterize the hydrodynamic studies of fluidized bed asit determines different flow regimes. Computational Fluid Dynamics simulations are carriedfor a cylindrical bubbling fluidized bed with a static bed height 1m with 0.150m diameter of gasification chamber. The parameter investigated is fluidization velocity in range of 0.05m/s to 0.7m/s. Sand with density 2600kg/m3and with a constant particle diameter of sand 385μm is employed for all the simulations. Simulations are conducted using the commercial Computational Fluid Dynamics software, ANSYS-FLUENT.The bubbling flow regime is appeared above the air inlet velocity of 0.2m/s. Bubbling character is increased with increase in inlet air velocities indicated by asymmetrical fluctuations of volume fractions in radial directions at different bed heights.
【 预 览 】
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CFD analysis of hydrodynamic studies of a bubbling fluidized bed | 831KB | download |