We investigate numerically the spreading dynamics of a bubble coming into contact with a
smooth solid substrate in a viscous liquid. The substrate is partially wettable, and the …

Droplets move on substrates with a spatio-temporal wettability pattern as generated, for
example, on light-switchable surfaces. To study such cases, we implement the boundary …

Numerical simulation of wetting or dewetting processes is challenging due to the multiscale
feature of the moving contact line. This paper presents a numerical method to simulate three …

In recent decades novel solid substrates have been designed which change their wettability
in response to light or an electrostatic field. Here, we investigate a droplet on substrates with …

A soft solid layer develops a ridge-like deformation below the contact line due to the pulling
force of the liquid–air surface tension when a droplet is in contact with it. We investigate the …

We investigate the spreading and retraction of a small sessile drop on a sphere governed by
capillary and viscous forces. The lubrication equation established in spherical coordinates is …

The stability of liquid films on surfaces is critically important in microscale patterning and the
semiconductor industry. If the film is sufficiently thin, it may spontaneously dewet from the …

We study the dynamic wetting of a self-propelled viscous droplet using the time-dependent
lubrication equation on a conical-shaped substrate for different cone radii, cone angles and …

The development of substrates with a switchable wettability is proceeding and the limit of
switching frequencies and contact angle differences between substrate states has …

In the context of dynamic wetting, wall slip is often treated as a microscopic effect for
removing viscous stress singularity at a moving contact line. In most drop spreading …