Surface forces and inertial effects on moving contact lines

A new mathematical model for the flow field near a dynamic contact line is presented in this paper. The new model takes into consideration the existence of unbalanced forces at the fluid–fluid interface. These forces could be caused by the presence of surface tension gradients, surface deformation or body forces such as London–var der Waals forces, unretarded London–var der Waals forces, electrostatic double-layer forces, etc. Inertia effects on the moving contact line is also studied.