SNIC
SUPR
SNIC SUPR
Computer simulations of colloids far from equilibrium
Dnr:

SNIC 2018/3-149

Type:

SNAC Medium

Principal Investigator:

Joakim Stenhammar

Affiliation:

Lunds universitet

Start Date:

2018-04-01

End Date:

2019-04-01

Primary Classification:

10603: Biophysics

Secondary Classification:

10304: Condensed Matter Physics

Allocation

Abstract

Within the first subproject we will study fluid-mediated collective effects in dense and semidilute suspensions of motile microorganisms (typically bacteria and algae) using Lattice-Boltzmann simulations. In particular, these suspensions are known to exhibit hydrodynamic instabilities leading to so-called "bacterial turbulence", a phenomenon which is currently not understood even at a basic level. We will also study the observed enhanced diffusion of passive particles in such suspensions, which is important to mass transport in biological systems (e.g. in bioreactors and the oceans). The second sub-project concerns field-assisted self-assembly of soft, temperature-responsive colloidal particles into advanced structures such as gels and nanotubes, and in particular the resulting rheological properties of the assembled materials.