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  4. Two articles published in Physical Review E

Two articles published in Physical Review E

23 September 2019 – Papers about thin film dynamics and soft particles at interfaces were published in Physical Review E.

Thin film dynamics

a picture showing a thin liquid filmTime evolution of the free surface for the Rayleigh-Taylor instability at different time steps.

Understanding thin film dynamics is an important step towards understanding printable photovoltaics. In our recent publication "A lattice Boltzmann method for thin liquid film hydrodynamics" we introduce a new method to efficiently simulate thin film flows using the lattice Boltzmann method. With our colleagues, Dr. Scagliarini from the CNR in Rome and Prof. Darhuber from the TU/e in Eindhoven, we performed several benchmarks to ensure the methods validity. Among those benchmarks were the Rayleigh-Taylor instability. An instability which occurs when a dense fluid is placed over a less dense fluid.

Soft particles at interfaces

picture of simulated soft particles at a dropletEquilibrium shape of adsorbed soft particles at a droplet.

In many fields soft particles at interfaces play an important role, for example medical applications, cosmetics, food industry, and paints and coatings. When multiple particles interact with each other, which is often the case in practical applications, it is typically no longer possible to predict the deformation dynamics of the individual particles, especially when fluid-fluid or fluid-vapor interfaces are present. To overcome this problem, we have developed a computational approach based on the lattice Boltzmann method to simulate soft particles in a multi-component fluid, both at and near fluid-fluid interfaces. We published the article "Mesoscale simulation of soft particles with tunable contact angle in multicomponent fluids".

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