Research Group of Multiphase Reactors

To understand the behavior of bubbly or emulsion systems, it is necessary to study the dynamics of individual bubbles or drops (particles). The interaction of two particles can lead to coalescence (joining), or when a bubble or droplet interacts with a vortex, it can break into several smaller particles. The research aims to describe the dynamic changes of bubbles or drops in different situations (e.g. formation, deformation, coalescence, breakup).

Surfactants are substances whose molecules adsorb on the interfacial surface and influence the behaviour of multiphase systems (especially gas-liquid dispersions). In the case of biosurfactants (e.g. proteins, peptides), the mechanism of adsorption to the interface is not sufficiently described, and therefore it is difficult to predict their influence on the behaviour of the entire system. The aim of the research is to study the mechanism of adsorption of surfactants and biosurfactants on the bubble interface and their projection to hydrodynamics and mass transfer in bubbly flows.

Powder and granular systems, characterized by a variety of particle sizes, shapes, and material properties, exhibit complex dynamic behavior. These systems are influenced by forces, the spatial arrangement of individual grains, and flow properties, which together determine macroscopic behavior such as segregation, mixing, and pattern formation. Using advanced computational models and experiments, our research aims to describe the theoretical basis for the behavior of these systems. The results of our research have potential applicability in various industries, such as pharmaceutical and chemical industries, agriculture, and construction.

Thin liquid layers are crucial for a number of important transport processes in physics, chemistry, and engineering. At the interface between gas and liquid phases, the dissolution of substances and their transport by diffusion occurs due to the different physical properties and solubility of the gases. Our goal is to develop a thin liquid film-based system for efficient separation of gaseous mixtures and to optimize it for state application. This is a novel idea with the potential to improve gas separation processes.

• Heat transfer in liquids with nanoparticles
• Hydrodynamics of micro and nanobubbles