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[16:00-17:00] MST colloquium
- Description:
- Colloquium October 2, 2017
Speaker: Dr. Arash Nikoubashman
Affiliation: Univ. of Mainz, Germany
Title: "Computer simulations of colloidal systems under flow"
Location: Computer Science Department, room A115 (ground floor),Voutes
Time: 16:00
Language: English
Abstract
Colloidal systems under flow are ubiquitous in nature and technology,
whether it is the transport of proteins and enzymes in biological
systems or the flow of surfactants in enhanced oil recovery. Such
microrheological systems are also highly intriguing from a purely
scientific point of view due to the intricate interplay between the
solute and solvent particles. To better understand the physical
properties of these complex systems and to assist the design of
microfluidic devices, we performed extensive simulations of both rigid
and soft colloidal particles under flow. This computational approach
allows for systematic control over the system parameters while also
providing microscopic insight. In this presentation, selected systems
will be discussed to give an overview of the possibilities and
challenges in this field. For example, microfluidic channels can be used
to distinguish polymers based on their topology, such as linear,
dendritic or ring-shaped macromolecules. Furthermore, non-linear flow
effects such as inertia or viscoelasticity can be exploited to control
the lateral motion of dispersed particles. Flow can also be used to
enhance the growth as well as the breakup of colloidal aggregates,
depending on the applied flow strength.
Host: Dimitris Vlassopoulos 1469
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October 2017
