Oblique impact dynamics of micron particles onto a liquid surface

A study shows that during oblique impact of a particle onto a liquid surface, nonaxisymmetric wetting of the particle causes a nonaxisymmetric distribution of fluid pressure and shear stress along the particle surface. This leads to a deviation of the dominant forces at different impact stages from the particle direction of motion. The particle then follows a different trajectory from that of the impact direction while a viscous moment is generated that rotates the particle.