Flow focusing microfluidic droplet generator

Hello all,

I'm completely new to comsol, and have therefore been looking for instructions on how to generate a flow focus droplet generator simulation. I've been playing around with the t-junction droplet break-up model that's already available, but was wondering whether there was one for flow focus geometries? If not, how would I go about generating one (since I have no clue as to where to begin)?

Thanks