Numerical Computations for the Flow of Liquid Crystals
We report here calculations for average properties -viscosity, thermal conductivity, and dielectric constant — when a nematic liquid crystal is undergoing flow in three situations: Poiseuille flow in a capillary, and Couette and Poiseuille flow between flat plates including the presence of a magnetic field. By presenting the results in dimensionless form we are able to derive “universal” curves for these average properties in their dependence on the appropriate driving forces: pressure drop, surface velocity and magnetic field. The “universal” curves are nearly the same for p, p’-dimethoxy-azoxybenzene (PAA) and p’ methoxybenzylidene-p-n-butylaniline (MBBA) even though their respective viscosities differ markedly.
KeywordsThermal Conductivity Pressure Drop Liquid Crystal Flat Plate Nematic Liquid Crystal
Unable to display preview. Download preview PDF.
- 2.Gruler, H., Z. Naturforsch. 28A, 474 (1973).Google Scholar
- 5.Gähwiller, Ch., Phys. Lett. 36A, 311 (1971).Google Scholar
- 6.Longley-Cook, M. and Kessler, J. O., private communication.Google Scholar
- 8.Maier, W., Z. Naturforsch. 16A, 470 (1961).Google Scholar
- 9.Gerritsma, C. J., DeJeu, W. H. and Van Zanter, P., Phys. Lett. 36A, 389 (1971).Google Scholar
- 10.Marinin, W. and Zwetkoff, W., Acta Physicochim. URSS 11, 837 (1939).Google Scholar