2001/08/31 by Colin Denniston, Geza Toth, Julia M. Yeomans
Physics and Astronomy · #cond-mat.soft #cond-mat.mtrl-sci #cond-mat.stat-mech
paper · pdf · doi:10.1023/a:1014562721540
published as Journal of Statistical Physics, Vol. 107, 187-202(2002). · 14 pages including 5 figures; minor changes before publication
arxiv created 2002/01/28 · arxiv updated 2009/11/30
We extend a lattice Boltzmann algorithm of liquid crystal hydrodynamics to include an applied electric field. The approach solves the equations of motion written in terms of a tensor order parameter. Back-flow effects and the hydrodynamics of topological defects are included. We investigate some of the dynamics relevant to liquid crystal devices; in particular defect-mediated motion of domain walls relevant to the nucleation of states useful in pi-cells. An anisotropy in the domain wall velocity is seen because defects of different topology couple differently to the flow field.