  The development of substrates with a switchable wettability is on a fast
pace. The limit of switching frequencies and contact angle differences between
substrate states are steadily pushed further. We investigate the behavior of a
droplet on a homogeneous substrate, which is switched between two wettabilities
for a large range of switching frequencies. Here, we are particularly
interested in the dependence of the wetting behavior on the switching
frequency. We show, that results obtained on the particle level via molecular
dynamics simulations and on the continuum level via the thin-film model are
consistent. Predictions of simple models as the molecular theory of wetting
(MKT) and analytical calculations based on the MKT also show good agreement and
offer deeper insights into the underlying mechanisms.
