Open AccessSimulation of microstructure of liquid-crystalline polymers in nonhomogenous shear flow by EFG method
Author(s) -
Xiaodong Wang,
Jie Ouyang,
SangMan Jin
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.6369
Subject(s) - materials science , microscale chemistry , hagen–poiseuille equation , microstructure , shear flow , polymer , deborah number , composite number , flow (mathematics) , shear (geology) , galerkin method , mechanics , composite material , thermodynamics , finite element method , physics , mathematics education , mathematics
Complex microstructures of liquid-crystalline polymers in nonhomogenous shear flow are studied by element free Galerkin (EFG) method based on the micro-macro dualscale model. The dualscale model combines the orientational diffusion equation in microscale with the flow governing equations in macroscale. The EFG method which has the merits of high accuracy and good stability can ensure the reliability of the simulation results. One simple and five composite structures of liquid-crystalline polymers in nonhomogenous shear flow are predicted by studying the influences of Deborah number on microstructures of liquid-crystalline polymers in plane Poiseuille flow. It shows that the instabilities in the transition region of the composite structures can cause some defects.