Published 4 issues per year
ISSN Print: 1065-3090
ISSN Online: 1940-4336
Indexed in
TRANSONIC 3D NON-STATIONARY FLOW VISUALIZATION USING PULSE TRANSVERSAL DISCHARGE
ABSTRACT
Application of the 3D visualization method with high time resolution for investigation of gas flow past a model of an oversized cone-cylinder body is presented. The nanosecond transversal spatial discharge with plasma electrodes is used for transonic flows with shock waves visualization in a shock tube. The discharge electric current time and luminescence time is 200 ns. Flow structure details are visualized by plasma flash glow recording. The pulse discharge visualization method allowed obtaining images of local low-density areas from two different views − upwind and downwind the streamlined model. The simultaneous instant images of discharge glow were taken by two cameras through opposite windows of the test chamber. Elements of the visualized flow structure are: shock waves, separation lines, vortices in a rear separation zone, terminating discontinuity, and boundary separation zone instabilities on glass windows surface.
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Znamenskaya I. A., Koroteeva E. Yu., Timokhin M. Yu., Mursenkova I. V., Glazyrin F. N., Tatarenkova D. I., Experimental investigation of the flow dynamics and boundary layer in a shock tube with discharge section based on digital panoramic methods, 2027, 2018. Crossref
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Ieshkin A. E., Danilov A. V., Chernysh V. S., Ivanov I. E., Znamenskaya I. A., Visualization of supersonic flows with bow shock using transversal discharges, Journal of Visualization, 22, 4, 2019. Crossref
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Znamenskaya I. A., Tatarenkova D. I., Kulizade T. A., Nanosecond Ionization of an Area of Flowing around a Rectangular Ledge by a High-Speed Flow, Technical Physics Letters, 46, 1, 2020. Crossref
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Znamenskaya I A, Ivanov I E, Naumov D S, Kulkin M K, Visualization of the shock wave diffraction on the wedge in a rectangular channel, Journal of Physics: Conference Series, 1250, 1, 2019. Crossref