Prog. Theor. Phys. Vol. 68 No. 2 (1982) pp. 388-401
Molecular Theory of Hydrodynamic Equations for Nematic Liquid Crystals
Department of Applied Physics, Faculty of Engineering, Nagoya University, Nagoya 464
(Received February 3, 1982)
By making use of the method of generalized Langevin equations, hydrodynamic equations are derived for the nematic phase in the system of elongate rigid rod molecules. The coupling between energy and momentum densities in the equations of motion is found to be linear with the wave number. An anisotropy in the sound velocity in the hydrodynamical region is estimated. The extension to the smectic A phase and the behaviour of nematic liquid crystal in high frequency in connection with the second viscosity are discussed.
DOI : 10.1143/PTP.68.388
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