Emmanuel Plaut

TL;DR: In this paper, a symmetry-breaking bifurcation in nematic liquid crystal convection in planarly aligned cells involving a homogeneous reorientation of the director was reported.

TL;DR: In this paper, a boundary layer theory is presented which allows a systematic study of the linear properties of the system in the asymptotic regime of very fast rotation rates, and the influence of this global coupling term on the sideband instabilities of the waves is studied.

TL;DR: In this article, the authors studied theoretically convection phenomena in a laterally extended planar nematic layer driven by an ac-electric field (electroconvection in the conduction regime) or by a thermal gradient (thermoconvection) and demonstrated that the sequence of bifurcations found experimentally or in numerical computations can be recovered, provided a homogeneous twist mode of the director is considered as a new active mode.

TL;DR: In this article, a linear and weakly nonlinear analysis of convection in a layer of shear-thinning fluids between two horizontal plates heated from below is performed, where the authors examine the effects of the nonlinear variation of the viscosity with the shear rate on the nature of the bifurcation, the plan-form selection problem between rolls, squares and hexagons, and the consequences on the heat transfer coefficient.

TL;DR: In this paper, a general reformulation of the Reynolds stresses created by two-dimensional waves breaking a translational or a rotational invariance is described, emphasizing the importance of a geometrical factor: the slope of the separatrices of the wave flow.