Numerical simulation of the 2D lid-driven cavity flow of chiral liquid crystals

In this study, the two-dimensional (2D), lid-driven cavity flow of chiral liquid crystals (LCs) was modelled using Landau de-Gennes (LdG) theory. Parametric studies investigating effect Er (Ericksen number) and Θ (chiral strength) on microstructure LCs were performed. we observed that an increase in caused texture to have more striations shorter pitch lengths as causes for increased number defects. When held constant, disrupted structure even broke it at very high Er. Interestingly, a transition from low (10) moderate (1,000) defects; however, further increases reduced defects since much destroyed by viscous effects. particular, Er, still present vortex always with lower velocities, where smaller. We also found hexagonal penta-hepta formed strengths.