Abstract
Time-and-space localized disturbances (wave packets), created by pulsed electric discharges in a supersonic boundary layer, were visualized using hot-wire anemometry. Experimental studies were performed on a flat plate model with a sharp leading edge at Mach number M = 2. The evolution of localized artificial disturbances generated by discharges of different duration and power was studied. The velocity of propagation of the wave packets was also determined.
Graphical Abstract
Contour lines of the wave packet in the plane (z, t)
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Acknowledgements
The work was financially supported by the Russian Science Foundation (Project No. 16-19-10330).
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Yatskikh, A.A., Ermolaev, Y.G., Kosinov, A.D. et al. Hot-wire visualization of the evolution of localized wave packets in a supersonic flat-plate boundary layer. J Vis 20, 549–557 (2017). https://doi.org/10.1007/s12650-016-0414-2
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DOI: https://doi.org/10.1007/s12650-016-0414-2