Isotropic-nematic transition in shear flow: State selection, coexistence, phase transitions, and critical behavior.
Isotropic-nematic transition in shear flow: State selection, coexistence, phase transitions, and critical behavior.
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剪切流中的各向同性向列相转变：状态选择、共存、相变和临界行为。
DOI：
10.1103/physreva.46.4966
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
["P. Olmsted
中科院分区：
文献类型：
--
作者：
["P. Olmsted
在热致液晶流体中，宏观流体运动可在各向同性-均质转变附近产生戏剧性的后果。我们探讨了这些后果，使用确定性和随机描述，涉及耦合的流体动力学方程的运动的二阶参数和流体速度场。通过对确定性运动方程的分析，确定了流体在齐次阶数和应变率下的局部稳定状态，从而确定了流体可能采用的齐次非平衡稳定状态
Macroscopic fluid motion can have dramatic consequences near the isotropic-nematic transition in thermotropic liquid-crystalline fluids. We explore some of these consequences using both deterministic and stochastic descriptions involving coupled hydrodynamic equations of motion for the nematic order parameter and fluid velocity fields. By analysing the deterministic equations of motion we identify the locally stable states of homogeneous nematic order and strain rate, thus determining the homogeneous nonequilibrium steady states which the fluid may adopt