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Journal Article

Stochastic rotation dynamics for nematic liquid crystals

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Lee,  Kuang-Wu
Group Non-equilibrium soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Mazza,  Marco G.
Group Non-equilibrium soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Lee, K.-W., & Mazza, M. G. (2015). Stochastic rotation dynamics for nematic liquid crystals. The Journal of Chemical Physics, 142(16): 164110. doi:10.1063/1.4919310.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-6121-B
Abstract
We introduce a new mesoscopic model for nematic liquid crystals (LCs). We extend the particle-based stochastic rotation dynamics method, which reproduces the Navier-Stokes equation, to anisotropic fluids by including a simplified Ericksen-Leslie formulation of nematodynamics. We verify the applicability of this hybrid model by studying the equilibrium isotropic-nematic phase transition and nonequilibrium problems, such as the dynamics of topological defects and the rheology of sheared LCs. Our simulation results show that this hybrid model captures many essential aspects of LC physics at the mesoscopic scale, while preserving microscopic thermal fluctuations.