平行平板間における高分子液晶の流れの数値解析

概要

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Numerical calculations of steady flows of polymeric liquid crystals between parallel plates have been carried out using the molecular theory derived by Doi. Some simplifications including a decoupling approximation are employed in order to avoid calculation difficulties. The velocity profiles are flat in comparison with Newtonian flow because of the shear-thinning viscosity possessed by the liquid crystalline polymers. On approaching the channel wall, the order parameters increase and the preferred angles of molecules measured with respect to the flow direction decrease. The position of the centerline is singular for the preferred angle. The mean-field potential has the effect of strongly orienting the rod molecules. Therefore, the increase of the potential is responsible for the drop in the viscosity and for the decrease of the preferred angle.
社団法人日本機械学会の論文
1992-11-25