Effect of External\nElectric Field on Fluidization\nof Rodlike Particles Using CFD–DEM

Given\nthe significant impact of an external electric field on fluidized\nbed hydrodynamics and the practical importance of rodlike particles,\nthis study examines the behavior of a fluidized bed containing rodlike\nparticles under various external electric fields. Simulations were\nperformed using a coupled computational fluid dynamics-discrete element\nmethod, and rodlike particles were generated using a multisphere approach\naided by quaternions. The effect of different vertical and horizontal\nexternal electric fields on the orientation of particles was investigated.\nAlso, the effect of particle size on their orientation in the presence\nof constant vertical and horizontal external electric fields was explored\nin this work. The results showed that increasing the electric field\nstrength and reducing the size of rodlike particles lead to an increment\nin the tendency of particles to become oriented along the direction\nof the electric field. Moreover, the effect of the external electric\nfield at various inlet gas velocities on the probability distribution\nof the porosity in the bed was studied. Finally, the effect of vertical\nand horizontal electric fields on the bubble diameter was examined.\nThis study offers a deeper understanding of the fluidization of rodlike\nparticles in the presence of an electric field, and its findings can\nbe applied to design and optimize related processes.