2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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TechConnect Summit
Clean Technology 2008

Modeling of microfluidic foam rheology

J. Czerwinska
Institute of Fundamental Technological Research, PL

Keywords:
microfluidics foams simulations

Abstract:
The structure of and ordered microfluidics foam is determined by its confining geometry. This allows to control structure as well as to perform “logic operations” on the bubbles. Numerical simulations of digital microfluidics devices can significantly enhance design of such devices. However models based on the minimization of energy do not take to account viscous effects in fluids, which are especially apparent in curved geometries and for non-uniform motion of foam. Here, the different model for foam dynamics is presented – Voronoi fluid particle dynamics. Each foam cell is modelled as a fluid particle interacting with neighbouring cells. Such assumptions allows to derive equations of motion and also to study rheological properties of the system.


Nanotech 2008 Conference Program Abstract