Numerical analysis of non-spherical particles in particle-wall, particle-particle, and particle-fluid interactions

Non-spherical particles within a fluid suspension can be difficult to experimentally analyze. This study presents a numerical analysis of non-spherical particle-particle, particle-wall, and particle-fluid interactions. The sharp-interface curvilinear immersed boundary (CURVIB) method is employed to simulate particle-fluid interactions. The kinematic equations of motion are utilized to model particle dynamics, while a threshold algorithm is used to detect particle-wall and particle-particle collisions. Collision is modeled by employing conservation of momentum and the coefficient of restitution to ensure physical behavior. Verification studies for (no fluid) simulations confirm that the total energy is conserved when the coefficient of restitution is equal to one for both particle-particle and particle-wall collisions. By investigating particle interactions and dynamics within a fluid, we can achieve a better understanding of particle behavior across various fields.

Acknowledgments: Computational resources were provided by Texas A&M High Performance and Research Center.