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Dynamics of cholesteric structures in an electric field
O. S. Tarasov, A. P. Krekhov, L. Kramer
Motivated by Lehmann-like rotation phenomena in cholesteric drops we study the transverse drift of two types of cholesteric fingers, which form rotating spirals in thin layers of c…
Transition to spatially periodic patterns in nematics under oscillatory shear flow: linear analysis
O. S. Tarasov, A. P. Krekhov, L. Kramer
We consider the orientational instabilities, both homogeneous and spatially periodic, developing in a nematic liquid crystal under rectilinear oscillatory Couette flow for director…
Influence of weak anchoring on flow instabilities in nematic liquid crystals
O. S. Tarasov, A. P. Krekhov, L. Kramer
We analyse the homogeneous instabilities in a nematic liquid crystal subjected to plane steady Couette or Poiseuille flow in the case when the director is pre-aligned perpendicular…
Orientational transition in nematic liquid crystals under oscillatory Poiseuille flow
P. Toth, A. P. Krekhov, L. Kramer +1
We investigate the orientational behaviour of a homeotropically aligned nematic liquid crystal subjected to an oscillatory plane Poiseuille flow produced by an alternating pressure…
Director precession and nonlinear waves in nematic liquid crystals under elliptic shear
T. Borzsonyi, A. Buka, A. P. Krekhov +2
Elliptic shear applied to a homeotropically oriented nematic above the electric bend Freedericks transition (FT) generates slow precession of the director. The character of the acc…