[michielm]

Hi all,
I am using interFoam to simulate a droplet rolling down a tilted plate. I started out using the static contact angle model and all seemed fine*.

Then I switched to the dynamic contact angle model, setting the parameters to get as close as possible to the Cox-Voinov relation.

This resulted in an unstable/distorted interface (near the contact line) as you can see in the attached image.

Does anyone know what might be the cause of this distortion which is clearly unphysical?

Thanks,

Michiel


* (except that the lack of dynamic CAs gave non-realistic terminal velocities)