1. Numerical Modeling of Fluid Droplet Spreading and Contact Angle Hysteresis
Nikolai V. Priezjev, Mechanical Engineering, Michigan State University, MI 48824
Molecular dynamics simulations of two-phase flow with moving contact line over a smooth surface: High resolution of the velocity fields and shear stresses near the contact line in the steady-state shear flow
The MD results show that both dynamic contact angle and slip velocity near the contact line increase with
increasing the capillary number (Ca). Also, at high Ca the break up of fluid-fluid interface is observed. The slip
boundary conditions near the moving contact line extracted from MD simulations were then used in the
continuum solution of the Navier-Stokes equation in the same geometry to reproduce velocity profiles and
the shape of the fluid-fluid interface. Reference: A. Niavarani, Ph.D. thesis (2010). us ut Ls
Fluid flow
Rough surface t n
"Modeling the combined effect of surface
roughness and shear rate on slip flow of simple fluids"
Reference: A. Niavarani and N.V. Priezjev, Phys. Rev. E 81, (2010).