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Visualization of Mechanical Processes: An International Online Journal

Publicou 4 edições por ano

ISSN On-line: 2152-209X

SHEAR SENSITIVE LIQUID CRYSTALS FOR DIAGNOSTICS OF BOUNDARY LAYER STRUCTURE IN AERODYNAMICAL EXPERIMENT

Volume 3, Edição 1, 2013,
DOI: 10.1615/VisMechProc.2014007940
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RESUMO

The paper presents a brief introduction in the materials and methods of the panoramic diagnostics of shear stresses, induced by the flow on the model surface, by liquid crystals. Two mechano - optical effects in liquid crystals with helicoidal supermolecular structure (texture transition from con-focal to planar liquid crystal texture and shift of the selective reflection peak of initially planar texture), which form the bases of experimental techniques, are considered. The optical response of liquid crystals manufactured at ITAM was investigated by the spectral and colorimetric methods. Some results obtained under sub-sonic velocities give evidence of wide possibilities of the technique.

CITADO POR
  1. Zharkova Galina M., Kovrizhina Valentina N., Petrov Alexander P., Smorodsky Boris V., Podjachev Sergey P., Application of variable cross-section channel for calibration of liquid crystals shear stress indicators, 1770, 2016. Crossref

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