Investigation of flow features in a rectangular cavity using panoramic visualization methods

The results of an experimental study of the flow around a shallow open-type cavity in the flow velocity range from M = 0.30 to M = 0.75 using oil-film visualization and liquid crystal panoramic methods developed at ITAM SB RAS are presented. Oil-film patterns of limiting streamlines on the surfaces...

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Bibliographic Details
Main Authors: Mironov, D. S., Lebiga, V. A., Zharkova, G. M., Pak, A. Yu, Kovrizhina, V. N., Petrov, A. P.
Format: Conference Proceeding
Language:English
Subjects:
Flow velocity
Liquid crystals
Shear stress
Skin friction
Visualization
Online Access:Get full text
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Summary:The results of an experimental study of the flow around a shallow open-type cavity in the flow velocity range from M = 0.30 to M = 0.75 using oil-film visualization and liquid crystal panoramic methods developed at ITAM SB RAS are presented. Oil-film patterns of limiting streamlines on the surfaces of the cavity are obtained; temperature distributions on the bottom wall of the cavity are obtained using calibrated temperature-sensitive films based on LC; and the distribution of shear stresses of surface skin friction over the surface of the model is also considered. Changes in the flow structure during the flow around the cavity depending on the velocity of the free stream are shown.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0132807