The fluid-dynamic characteristics of a mixing stirred reactor are studied theoretically by the computational fluid dynamic simulations in order to optimize both the hydrodynamic parameters and cell geometry. Basic fluid-dynamic three-dimensional models and operating parameters for the stirred electrolytic cell are reported. Based on the simulation results, two promising models are shown. The first one for the high cell with angular velocity of 500 for the small stirrer that is located at the distance of 0.2 from the bottom of the electrolytic cell. The second one for the small cell with angular velocity of 0.1 for the big stirrer that is located at the distance of 0.25 from the bottom of the electrolytic cell. The proposed mixing stirred reactors can be used not only for fluidization of microparticles but also for electroplating of iron particles.