2010-Instability and Rotation of Liquid Crystal Films 2010-Instability and Rotation of Liquid Crystal Films

  • Introduction

In a two-dimensional cell used for electrolysis of water films, one can electrically induce a hydrodynamic rotation. It is a project in collaboration with Condensed Matter Group (Dr. M. Reza Ejtehadi) at Physics department of Sharif University of Technology.

This research concerning a novel mechanism of Fluid film rotation.

 

  • Publication:

R. Shirsavar, A. Amjadi, M. R. Ejtehadi, M. R. Mozaffari, M. S. Feiz

 

  • Downloads:

Movie#1:

By applying electeric voltage(900V) across the MBBA liquid crystal film, some vortices are produced.

Frame dimensions: 1mm*8mm

 

Movie#2:

The vortices pattern change with increasing and decreasing external electric field. This movie shows the vortices are controllable with external electric field in MBBA.

Frame dimensions: 3mm*8mm

 

Movie#3:

Evolution of liquid crystal(MBBA) film director (between two perpendicular polarizers).

Frame dimensions: Circular frame with radius of 3.5mm

 

Movie#4:

Suspended MBBA film has been subjected between two perpendicular polarizers, and electric voltage and field are applied on the film.

Frame dimensions: Circular frame with radius of 3.5mm