Curtain coating flow of an inclined thin liquid films

Abstract EN

The mechanism of thin liquid films on solid surfaces is fundamental to a wide variety of phenomena such as surface coatings in paint.

A mathematical model is constructed to describe the two dimensions of steady thin liquid films flow on an inclined plane with the use of lubrication approximation, we have applied Navier-Stokes equations in two dimensional coordinates for flow of incompressible fluid with the specified boundary conditions, and the solution of the film thickness equation has been drawn for flow for several inclination angles which modify the shape of the emerging patterns and also we derived the third order differential equations q e qq s r h Ca h Ca dx Ca dh dx g d h dx d h 30 sin( ) 33 cos( ) 223 sin( ) 3+ - + = - that govern such flow.

Finally the equations have been solved analytically.