منابع مشابه
Theoretical analysis of Poiseuille flow instabilities in nematics
2014 We study the stability of a Poiseuille flow in a planar nematic. We extend the analysis given in ref. [5] to take into account periodic distortions of the director. Several different approaches are employed : simplified models, Galerkin method, or numerical simulation. Our results allow one to interpret experimental findings so far obtained (refs. [4] and [9]). LE JOURNAL DE PHYSIQUE TOME ...
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The effect of eccentricity on absolute instabilities (AI) in the Taylor–Couette system with pressure-driven axial flow and fixed outer cylinder is investigated. Five modes of instability are considered, characterized by a pseudo-angular order m, with here |m| 6 2. These modes correspond to toroidal (m = 0) and helical structures (m 6= 0) deformed by the eccentricity. Throughout the parameter ra...
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2014 A nematic liquid crystal, oriented homeotropically (n//z) between two parallel plates (~ z) in relative motion x = x0 sin 03C9t on one plate, y = y0 cos 03C9t on the other one, exhibits a sequence of convective instabilities for increasing values of a dimensionless parameter N proportional to x0 y0 03C9. Above a first critical number Nc1, parallel convection rolls establish through the sam...
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ژورنال
عنوان ژورنال: Le Journal de Physique Colloques
سال: 1975
ISSN: 0449-1947
DOI: 10.1051/jphyscol:1975138