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Volume 2, Issue 6
Dynamics of Defect Motion in Nematic Liquid Crystal Flow: Modeling and Numerical Simulation

C. Liu, J. Shen & X. Yang

Commun. Comput. Phys., 2 (2007), pp. 1184-1198.

Published online: 2007-02

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  • Abstract

The annihilation of a hedgehog-antihedgehog pair in hydrodynamics of (elastically isotropic) nematic liquid crystal materials is modeled using the Erickson-Leslie theory which results in a nonlinear system for the flow velocity field and liquid crystal director field coupled through the transport of the directional order parameter and the induced elastic stress. An efficient and accurate numerical scheme is presented and implemented for this coupled nonlinear system in an axi-symmetric domain. Numerical simulations of annihilation of a hedgehog-antihedgehog pair with different types of transport are presented. In particular, it is shown that the stretching parameter in the transport equation contributes to the symmetry breaking of the pair's moving speed during the dynamics of annihilation.

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@Article{CiCP-2-1184, author = {C. Liu, J. Shen and X. Yang}, title = {Dynamics of Defect Motion in Nematic Liquid Crystal Flow: Modeling and Numerical Simulation}, journal = {Communications in Computational Physics}, year = {2007}, volume = {2}, number = {6}, pages = {1184--1198}, abstract = {

The annihilation of a hedgehog-antihedgehog pair in hydrodynamics of (elastically isotropic) nematic liquid crystal materials is modeled using the Erickson-Leslie theory which results in a nonlinear system for the flow velocity field and liquid crystal director field coupled through the transport of the directional order parameter and the induced elastic stress. An efficient and accurate numerical scheme is presented and implemented for this coupled nonlinear system in an axi-symmetric domain. Numerical simulations of annihilation of a hedgehog-antihedgehog pair with different types of transport are presented. In particular, it is shown that the stretching parameter in the transport equation contributes to the symmetry breaking of the pair's moving speed during the dynamics of annihilation.

}, issn = {1991-7120}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/cicp/7945.html} }
TY - JOUR T1 - Dynamics of Defect Motion in Nematic Liquid Crystal Flow: Modeling and Numerical Simulation AU - C. Liu, J. Shen & X. Yang JO - Communications in Computational Physics VL - 6 SP - 1184 EP - 1198 PY - 2007 DA - 2007/02 SN - 2 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/cicp/7945.html KW - AB -

The annihilation of a hedgehog-antihedgehog pair in hydrodynamics of (elastically isotropic) nematic liquid crystal materials is modeled using the Erickson-Leslie theory which results in a nonlinear system for the flow velocity field and liquid crystal director field coupled through the transport of the directional order parameter and the induced elastic stress. An efficient and accurate numerical scheme is presented and implemented for this coupled nonlinear system in an axi-symmetric domain. Numerical simulations of annihilation of a hedgehog-antihedgehog pair with different types of transport are presented. In particular, it is shown that the stretching parameter in the transport equation contributes to the symmetry breaking of the pair's moving speed during the dynamics of annihilation.

C. Liu, J. Shen and X. Yang. (2007). Dynamics of Defect Motion in Nematic Liquid Crystal Flow: Modeling and Numerical Simulation. Communications in Computational Physics. 2 (6). 1184-1198. doi:
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