HEAT CONVECTION IN A NEMATIC LIQUID-CRYSTAL

被引：28
|
作者：
DUBOIS, E [1 ]
GUYON, VE [1 ]
PIERANSKI, P [1 ]
机构：
[1] UNIV PARIS S, CNRS, LAB PHYS SOLIDES, 91405 ORSAY, FRANCE
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1974年 / 26卷 / 3-4期
关键词：
D O I：
10.1080/15421407408083099
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A theoretical and experimental study of the thermal properties of a well aligned nematic Liquid Crystal in a vertical temperature gradient is presented. Due to the long time constant of the relaxation of the director and to the anisotropy of the heat conductivity, the value of the temperature gradient threshold for convective instabilities is strongly modified as compared to the isotropic case. Experiments on planar MBBA films show a drastic reduction of the threshold. A detailed description of the shape and temperature distribution of the convective rolls is given.
引用
收藏
页码：193 / 212
页数：20
相关论文
共 50 条
  • [41] CONFORMATIONAL OPTICAL NONLINEARITY OF NEMATIC LIQUID-CRYSTAL
    PINKEVICH, IP
    REZNIKOV, YA
    RESHETNYAK, VY
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 207 : 43 - 52
  • [42] THE LESLIE COEFFICIENTS FOR A POLYMER NEMATIC LIQUID-CRYSTAL
    LEE, SD
    JOURNAL OF CHEMICAL PHYSICS, 1988, 88 (08): : 5196 - 5201
  • [43] NEMATIC LIQUID-CRYSTAL IN A TUBE - THE FREEDERICKSZ TRANSITION
    WILLIAMS, DRM
    HALPERIN, A
    PHYSICAL REVIEW E, 1993, 48 (04) : R2366 - R2369
  • [44] EQUATIONS OF MOTION OF NEMATIC LIQUID-CRYSTAL MEDIA
    AERO, EL
    BULYGIN, AN
    JOURNAL OF APPLIED MATHEMATICS AND MECHANICS-USSR, 1971, 35 (05): : 831 - &
  • [45] VISCOSITY MEASUREMENTS FOR THE NEMATIC LIQUID-CRYSTAL PAA
    TSENG, HC
    FINLAYSON, BA
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1985, 116 (3-4): : 265 - 284
  • [46] NEMATIC BEHAVIOR OF LIQUID-CRYSTAL POLYMER NETWORKS
    EDWARDS, SF
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 203 : 74 - PMSE
  • [47] DYNAMIC PROPERTIES OF A FERROELECTRIC NEMATIC LIQUID-CRYSTAL
    WEI, DQ
    PATEY, GN
    PHYSICAL REVIEW E, 1993, 47 (04): : 2954 - 2957
  • [48] ACOUSTICAL STREAMING IN A FILM OF NEMATIC LIQUID-CRYSTAL
    CANDAU, S
    FERRE, A
    PETERS, A
    WATON, G
    PIERANSKI, P
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1980, 61 (1-2) : 7 - 29
  • [49] STIMULATED RAMAN SCATTERING IN A NEMATIC LIQUID-CRYSTAL
    RAO, DVG
    AGRAWAL, DK
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1972, 17 (01): : 67 - &
  • [50] VISCOSITY COEFFICIENTS OF A BIAXIAL NEMATIC LIQUID-CRYSTAL
    KINI, UD
    CHANDRASEKHAR, S
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1990, 179 : 27 - 44
12345