S056034 配向分布関数を用いた平行平板間液晶流れの数値解析([S05603]複雑流体の流動現象(3))

概要

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We have numerically simulated the flow of liquid crystals between parallel plates using the Doi theory with the Marrucci-Greco potential. The time evolution equation for the orientation state is described with the orientational distribution function. Computation of the orientational distribution function is a huge task, so that we have approximated the function with a series of spherical harmonic functions in order to reduce the task. The preferred angle shows a 180 deg rotation except for both the channel wall and the centerline, and reaches its steady state. At dimensionless timet^*=5.875, the order parameter remarkably decreases and the preferred angle is almost perpendicular to the main flow direction near the channel wall, so that the velocity profile is sharpened compared with the steady state profile at t^*=8.0.
一般社団法人日本機械学会の論文
2011-09-11