We propose an implicitfinite-difference method to study the time evolution of the director field of a nematic liquid crystal under the influence of an electric field with weak anchoring at the boundary. The scheme allows us to study the dynamics of transitions between different director equilibrium states under varying electric field and anchoring strength. In particular, we are able to simulate the transition to excited states of odd parity, which have previously been observed in experiments, but so far only analyzed in the static case.
On the Dynamics of the Weak Fréedericksz Transition for Nematic Liquid Crystals / Aursand, Peder; Napoli, Gaetano; Ridder, Johanna. - In: COMMUNICATIONS IN COMPUTATIONAL PHYSICS. - ISSN 1815-2406. - 20:(2016), pp. 1359-1380. [10.4208/cicp.190615.090516a]
On the Dynamics of the Weak Fréedericksz Transition for Nematic Liquid Crystals
NAPOLI, Gaetano;
2016
Abstract
We propose an implicitfinite-difference method to study the time evolution of the director field of a nematic liquid crystal under the influence of an electric field with weak anchoring at the boundary. The scheme allows us to study the dynamics of transitions between different director equilibrium states under varying electric field and anchoring strength. In particular, we are able to simulate the transition to excited states of odd parity, which have previously been observed in experiments, but so far only analyzed in the static case.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
