Aims and techniques:
Experimental and numerical studies were performed to study shear induced orientational phenomena in suspensions of elongated particles as well as in nematic liquid crystals.
Latest results:
We studied the rotation dynamics of nonspherical particles in a shear flow in the presence of added noise in 3 dimensions. The Jeffery orbits of elongated (uniaxial, prolate) particles subject to noise were explored using Langevin simulations and a Fokker-Planck equation. We examined how the probability distribution of particle orientation changes when changing the rotation diffusion coefficient D (see figure). Various quantities (nematic ordering, biaxiality) are measured as a function of particle elongation and external noise. Phys. Rev. E 110, 044143 (2024) (download pdf) | ![]() |