Theoretical study of layer alignment in shear flow of smectic A liquid crystals
This paper presents a theoretical study of the behaviour of smectic A liquid crystals subject to shear flow. The liquid crystal is assumed to consist of uniform, planar smectic layers, on which no external moments and no external boundary conditions have been imposed. It is shown that of the five viscosity coefficients needed for a full description of dynamical behaviour of the SA phase, only two, &lgr;1 and &lgr;4, enter the expression of the shearing torque. A stability analysis establishes the possible flow alignment configurations of the smectic layers, and the geometrical arrangements of the flow aligned smectic layers are depicted, parametrized by the crucial parameter &lgr;1/&lgr;4. Finally, the effective viscosities of the system are derived for some fundamental orientations of the smectic layers with respect to the shear plane, and these allow the derivation of a few inequalities that the viscous coefficients should satisfy.
원문보기 무료다운로드 유료다운로드
- 무료 원문 정보가 존재하지 않습니다.
NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.