Particle Collision Study Based on a Rotational Boundary Condition

The main engineering machinery for the hydrodynamic lifting of seafloor mineral particles is rotor with rotating impeller motion. It important to study rebound mechanism collisions between and walls improve accuracy numerical simulation machinery. In this study, law motion change after investigated using an experimental research method. results show that deflection angle collision decreases increases in rotational speed wall, spin angular velocity wall. normal coefficient restitution under wall not affected by tangential boundary condition smaller than stationary higher speed, closer it During experiment, mode contact particle sliding contact. Sliding friction energy loss particle, also provides particle’s trajectory increased kinetic from velocity;