Effect of wettability on the water entry of spherical projectiles: Numerical analysis using smoothed particle hydrodynamics

The entry of projectiles into water has been interest to many scientists and engineers, being crucial a wide range engineering applications. problem is nonlinear unsteady phenomenon involving complicated multi-phase flow problems fluid–solid interaction. Many have studying in various conditions through experimental methods numerical methods. In this paper, three-dimensional simulations the are carried out. multiphase weakly compressible smoothed particle hydrodynamics model adopted three-phase interaction analyzed using pairwise force hydrodynamics. Dynamic boundary condition rigid body coupling introduced for between fluid solid. Spheres with different wetting characteristics entering at small Reynolds numbers investigated. Our results show good agreement theoretical models from previous studies splashing behavior spheres. physics behaviors discussed detail.