Abstract We study the evolution and lifetime of droplets evaporating on a smooth chemical pattern, which is characterised by spatially varying contact angle. formulate model that combines evaporation rate droplet for given volume with static stability as changes in time quasi-statically. derive an exact equation studied analytically under limiting cases nearly neutral wetting highly hydrophilic...

Inspired by peg-studded hexagonal epidermal cells found in biological pad interfaces, biomimic hierarchical surface patterns with different degrees of wettability were fabricated using a new method involving photolithography and wet etching. In order to understand the effects of the peg-studded structures on wettability and frictional properties, varying patterns were studied and compared. Expe...

Although self-assembled quantum dots are grown on wetting layers, most simulations exclude the wetting layer. The neglected effects on the electronic structure of a pyramidal InAs quantum dot embedded in a GaAs matrix are investigated based on the effective one electronic band Hamiltonian, the energy and position dependent electron effective mass approximation, and a finite height hard-wall 3D ...

We investigate strained heteroepitaxial crystal growth in the framework of a simplifying (1+1)-dimensional model by use of offlattice Kinetic Monte Carlo simulations. Our modified LennardJones system displays the so-called Stranski-Krastanov growth mode: initial pseudomorphic growth ends by the sudden appearance of strain induced multilayer islands upon a persisting wetting layer.

in oil industry, spontaneous imbibition is an important phenomenon in recovery from fractured reservoirs which can be defined as spontaneous uptake of a wetting fluid into a porous solid. spontaneous imbibition involves both cocurrent and countercurrent flows. when a matrix block is partially covered by water, oil recovery is dominated by cocurrent imbibition i.e. the production of non wetting ...

In this work, a lattice-Boltzmann method based on field mediators is proposed for the simulation of wetting in a liquid–vapor system. The method includes the effect of long-range interactions between the particles and solid walls, and is implemented together with a liquid–vapor model which is known from the literature. The results that were obtained in the simulations show that the contact angl...