Numerical Simulation Of Inertial Force Which Is In Differences In Rotational Motion

In this paper, establishing an enabling mathematical model based on the physical model experiment,itSimulated the motion of solid single particle c motion in rotating cylinder flow and binoculars concentricflow. Establishment of a two-dimensional model using GAMBIT13.0, establish a mathematical model byUsing ANSYS FLUENT CFD software. Using DPM discrete phase model to capture the trajectories ofsingle particle. Calculated the particle velocity at different locations. Analysis of single-particle motion andforce law in a rotating water flow system. The following conclusions:（1）Research motion of single particle that flowed in a cylindrical rotary, by comparing variousmodels, DPM is more suitable for studying such problems than other models.Open the DPM model,tracking the trajectory of a single particle, and gradually saved the velocity parameters of a single particleeach time. When Taylor vortex cell motion characteristics of a single test particle simulation using slidingmesh, increasing the accuracy of the calculation.（2）Use DPM model simulate motion of single particle in rotating cylinder flow. Stress Analysis thesingle particle to show that the larger of the flow rate in rotation system, the trend of centrifugal movementmore obvious sooner. When the cylinder rotate first and then static, single particles do centripetal motion.When rotational speed ω>10r/min,single particle suffered rotational inertia of differences are F≥0.1×10-6N, rotational inertia of differences is greater than centrifugal force an order of magnitude. Whenω≤10r/min,rotational inertia of differences are F≥0.1×10-6N,rotational inertia of differences is the sameorder of magnitude with centrifugal force.When the initial rotational speed is10r/min≤ω <15.20r/min, Itsuffered centrifugal and rotational inertia of differences are in value F≤0.1×10-6N. When the initialrotational speed, single particle do centripetal motion, centrifugal force and rotational inertia of differencesis the opposite direction. When the inner cylinder initial rotational speed is ω≥15.20r/min.（3）Using sliding mesh simulated single particle motion in concentric binoculars rotating flow by theDPM model. Single particle can be described in a rotating flow in movement. When the single-particlemove in rotating flow of concentrica binoculars continuous,Single particle do eccentric movement,thegreater the speed,the greater the difference centrifugal and rotary inertia force.When16r/min≤ω≤30r/min,the centrifugal force and rotational inertia of differences force on the values in the same order ofmagnitude,both sizes are F≤1.0×10-6N,When ω≥30r/min,rotational inertia of differences force is bigthan centrifugal force an order of magnitude.When the single-particle move in rotating concentric rotationfollowed binoculars static situation campaign,Single particle motion to the heart to do,When thesingle-particle move in rotating flow of concentrica binoculars continuous which is rotation followed by astationary.Single particle do radial movement,The larger the initial speed of the inner cylinder,the greaterrotational inertia of differences force and Centrifugal force.When the inner tube initial speed ω≥30r/min,Itsufferedrotational inertia of differences force in value is F≥1.0×10-6N,Centrifugal rotary inertia forceand differences in the same order of magnitude,the centrifugal force and rotational inertia of differences onthe values in the same order of magnitude.When16r/min≤ω≤30r/min,centrifugal force small thanrotational inertia of differences force an order magnitude in the value.