Project Details
Linking hydrodynamics and microscopic models of wet active matter with anisotropic particles (C06)
Subject Area
Statistical Physics, Nonlinear Dynamics, Complex Systems, Soft and Fluid Matter, Biological Physics
Term
from 2016 to 2018
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 233630050
The goal of this project is to develop a systematic, quantitative coarse-graining approach for a class ofinherently non-equilibrium systems, namely suspensions of self-propelled particles. We will link particlebased models with eective hydrodynamic models within a multiscale framework based on sequentialcoupling and parameter passing. We will combine microscopic Stokesian dynamics simulations witha mesoscopic kinetic model coupled to the macroscopic Stokes equation. The stress distribution,the long-time collective diusion and the eective self-propulsion speed extracted from microscopicsimulations will be passed as input parameters to the continuum kinetic model. In a second stepof coarse-graining, we will derive the eective hydrodynamic description in terms of particle density,polarization and nematic order parameter proles. In order to test the accuracy of our coarse-grainingapproach, the constitutive mechanical laws obtained from the microscopic and the continuum modelwill be compared.
DFG Programme
CRC/Transregios
Applicant Institution
Johannes Gutenberg-Universität Mainz
Project Head
Dr. Sara Jabbari-Farouji