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Published in: Journal of Visualization 4/2019

29-05-2019 | Regular Paper

Visualization of supersonic flows with bow shock using transversal discharges

Authors: A. E. Ieshkin, A. V. Danilov, V. S. Chernysh, I. E. Ivanov, I. A. Znamenskaya

Published in: Journal of Visualization | Issue 4/2019

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Abstract

Transonic and supersonic flows near the cones were visualized with two types of discharges. Pulse volume discharge with pre-ionization by plasma sheets was used to visualize the flow with discontinuities with time resolution in nanosecond range. Bow shock angle was measured by the glow images, and flow Mach number calculated. Stationary discharge was used to record a non-changing weakly luminous micro-nozzle jet flow spreading into a high vacuum region and interacting with a conical metal skimmer, which is essential for gas cluster equipment. A fusiform Mach barrel at the nozzle exit and the bow shock at the obstacle are visualized. The computational flow dynamics model based on Navier–Stokes–Fourier equations was verified by comparison with the experimental images and showed a good agreement with the observed flow structure.

Graphical abstract

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Metadata
Title
Visualization of supersonic flows with bow shock using transversal discharges
Authors
A. E. Ieshkin
A. V. Danilov
V. S. Chernysh
I. E. Ivanov
I. A. Znamenskaya
Publication date
29-05-2019
Publisher
Springer Berlin Heidelberg
Published in
Journal of Visualization / Issue 4/2019
Print ISSN: 1343-8875
Electronic ISSN: 1875-8975
DOI
https://doi.org/10.1007/s12650-019-00565-6

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