Thermal conductivity of the nematic liquid crystal 4-n-pentyl-4’-cyanobiphenyl

1994 ◽  
Vol 49 (1) ◽  
pp. 545-553 ◽  
Author(s):  
Guenter Ahlers ◽  
David S. Cannell ◽  
Lars Inge Berge ◽  
Shinichi Sakurai
Keyword(s):  
Thermal Conductivity ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal

Magnetic-field effect on thermal convection of a nematic liquid crystal at large Rayleigh numbers

2013 ◽  
Vol 716 ◽  
Author(s):  
Stephan Weiss ◽  
Guenter Ahlers
Keyword(s):  
Magnetic Field ◽  
Thermal Conductivity ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Thermal Convection ◽  
Field Effect ◽  
Magnetic Field Effect ◽  
Vertical Magnetic Field ◽  
Cylindrical Cell ◽  
Rayleigh Numbers

AbstractWe report on near-turbulent thermal convection of a nematic liquid crystal heated from below in a cylindrical cell with an aspect ratio (diameter/height) equal to 0.50 for Rayleigh numbers $2\times 1{0}^{7} \lesssim \mathit{Ra}\lesssim 3\times 1{0}^{8} $ and a Prandtl number of about 355. The Nusselt number $\mathit{Nu}$ as a function of $\mathit{Ra}$ did not differ significantly from that of an isotropic fluid. In a vertical magnetic field $\mathbi{H}$, we found $\mathit{Nu}(H)/ \mathit{Nu}(0)= 1+ a(\mathit{Ra}){H}^{2} $, with $a(\mathit{Ra})= 0. 24{\mathit{Ra}}^{0. 75} ~{\mathrm{G} }^{- 2} $. We present a model that describes the $H$ dependence in terms of a change of the thermal conductivity in the thermal boundary layers due to a field-induced director alignment.

Ising-Bloch transition in a nematic liquid crystal

1994 ◽  
Vol 4 (2) ◽  
pp. 319-331 ◽  
Author(s):  
J.M Gilli ◽  
M. Morabito ◽  
T. Frisch
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal

LIQUID CRYSTLASLIGHT SCATTERING BY FLUCTUATIONS INDUCED BY AN APPLIED ELECTRIC FIELD IN A NEMATIC LIQUID CRYSTAL (APAPA)

1972 ◽  
Vol 33 (C1) ◽  
pp. C1-63-C1-67 ◽  
Author(s):  
M. BERTOLOTTI ◽  
B. DAINO ◽  
P. Di PORTO ◽  
F. SCUDIERI ◽  
D. SETTE
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Applied Electric Field

Erratum : Flexoelectrically controlled twist of texture in a nematic liquid crystal

1982 ◽  
Vol 43 (16) ◽  
pp. 623-623 ◽  
Author(s):  
I. Dozov ◽  
Ph. Martinot-Lagarde ◽  
G. Durand
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal
Sign in / Sign up

Export Citation Format

Share Document