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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2012, 3, 90—104.

Liquid Crystal Sensors for Panoramic Diagnostics of Shear Stress and Temperature Filds

G. M. Zharkova

Author affiliations
Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Science
630090, Novosibirsk, Institutskaya str., 4/1. 

The paper considers properties of the panoramic liquid crystal sensors of temperature and shear stress applicable to aerodynamic experiments. The effects of temperature and shear stress on the wavelength of the selective reflection of the light of cholesteric liquid crystals are examined. The examples of the use of liquid crystal sensors for investigation of the structure of the near-wall flows under subsonic and hypersonic flow velocity are presented.

Keywords: cholesteric liquid crystals, shear stress, temperature, selective reflection wavelength, aerodynamic experiment

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