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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Micro- and Nanofluidics II

CPP 46.3: Vortrag

Freitag, 18. März 2011, 11:15–11:30, ZEU 222

Deformation of particle-stabilized droplets in multicomponent fluids — •Stefan Frijters and Jens Harting — Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands

Traditionally, enhanced oil recovery processes often employ surfactants to improve oil yield. In this project, nanoparticles are considered as an alternative to these surfactants. To determine in which ways these particles might be useful we need to understand how they modify the properties of a droplet of fluid suspended in another fluid. We present a simulation algorithm based on a multicomponent lattice Boltzmann model to describe the solvents combined with a molecular dynamics solver for the description of the solved particles. We have the ability to tune numerous relevant parameters of the system, such as particle sizes and wettability and surface tensions between the fluids and we use this ability to study the behaviour of fluid droplets stabilized by particles when subjected to shear. We then consider how these effects compare to those of surfactants.