how to simulate drop impact on a solide surface using fluent
 

Hello,
I am learning to use fluent and i would like to use it to somulate a drop impact on a solid surface . The aim of my work is to study the wetting dynamics ( different phenomenon can occur : spreading of the drop on the surface , bouncing or splashing of the drop) the behaviour of the drop on the surface depends mainly on the contact angle at the contact line ( between the drop and the solid surface) which is determinated by the surface energy of solid and surface tension of the liquid. My idea is to use the VOF model but I as I am a new user of fluent I don't know how to use the contact angle model.
I would be very grateful if somebody could help me .
Thanks in advance