Abstract

CFD simulation results of gas–solid fluidized bed using 2D Eulerian–Eulerian approach at high gas velocities integrating the kinetic theory of granular flow are presented. The range of gas velocities are from 0.35 to 2.19m/s. Predicted particle motion and bubble behavior in the bed are consistent with the literature data. Simulation results indicate that Arastoopour's drag model is the best choice for the current system. Laminar flow and turbulent models, standard k-ε and Simonin, are compared at Ug = 2.19m/s. CFD results show that Simonin model can be used at high gas velocities, reasonably. Current model reduces simulations errors compared with previous works. The minimum error is 6.5% and the maximum error is 13% in lower and upper part of the bed in radial direction, respectively.

Recommended Citation

Hosseini, Seyyed Hossein; Zivdar, Mortaza; Rahimi, Rahbar; and Samimi, Abdolreza (2009) "CFD Simulation of Solid Hold–Up in Gas–Solid Fluidized Bed at High Gas Velocities," Chemical Product and Process Modeling: Vol. 4 : Iss. 1, Article 19.
DOI: 10.2202/1934-2659.1345
Available at: http://www.bepress.com/cppm/vol4/iss1/19