Scholarlink

Abstract <p>A model is proposed for the domain structure formed in a layer of a nematic (lyotropic liquid crystal) during its reorientation from a conditionally planar state to the homeotropic state under the action of boundaries in zero external electric and magnetic fields in the absence of mechanical deformations. The model is based on the effect of “reverse flow,” viz., a change in the director orientation, which leads to the motion of the centers of mass of nematic molecules and ultimately to a nematic flow with a nonzero velocity gradient. The results of modeling are compared with experimental data on the observation of domain structures in a lyotropic nematic of the disulfoindanthrone–water system. It is shows that the proposed model provides a satisfactory description of the experimental results.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Hydrodynamic Instability of the “Reverse Flow” in a Lyotropic Nematic

  • 期刊论文

  • 发表日期：

    2026年2月1日

查看全文
  • A. V. Golovanov

摘要

Abstract

A model is proposed for the domain structure formed in a layer of a nematic (lyotropic liquid crystal) during its reorientation from a conditionally planar state to the homeotropic state under the action of boundaries in zero external electric and magnetic fields in the absence of mechanical deformations. The model is based on the effect of “reverse flow,” viz., a change in the director orientation, which leads to the motion of the centers of mass of nematic molecules and ultimately to a nematic flow with a nonzero velocity gradient. The results of modeling are compared with experimental data on the observation of domain structures in a lyotropic nematic of the disulfoindanthrone–water system. It is shows that the proposed model provides a satisfactory description of the experimental results.