Heat Driven Flows in Microsized Nematic Volumes: Computational Studies and Analysis

The nematic fluid pumping mechanism responsible for the heat driven flow in microfluidic channels and capillaries is described a number of applications. This can be generated either by laser beam focused inside microvolume at channel boundary, or inhomogeneous heating capillary boundaries. As an example, scenario vortex excitation microsized volume, under influence temperature gradient caused flux through bounding surface channel, described. In order to clarify role formation hydrodynamic regimes based on nonlinear extension Ericksen–Leslie theory, supplemented thermomechanical correction shear stress Rayleigh dissipation function, as well taking into account entropy balance equation, are analyzed. It shown that features affected not only power radiation, but also duration energy injection channel.