Images of unstable Taylor-Sedov blast waves propagating through a uniform gas

We present images from the first observation and measurements of an instability in Taylor-Sedov blast waves propagating through a uniform background gas. The instability occurs when the adiabatic index of the background gas is low. Images of the expanding blast waves are dark field shadowgraphs obta...

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Veröffentlicht in:	IEEE transactions on plasma science 1996-02, Vol.24 (1), p.35-36
Hauptverfasser:	Manka, C., Grun, J., Stamper, J., Resnick, J., Burris, R., Crawford, J., Ripin, B.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Electrons Exact sciences and technology Fundamental aspects of astrophysics Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations Gas lasers Laser ablation Laser theory Magnetohydrodynamics and plasmas Nitrogen Optical (ultraviolet, visible, infrared) measurements Optical pulses Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Plasma diagnostic techniques and instrumentation Plasma production and heating Plasma production and heating by laser beams Plasma waves Probes Shock waves Shock waves and discontinuities Waves, oscillations, and instabilities in plasmas and intense beams Xenon
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Beschreibung
Zusammenfassung:	We present images from the first observation and measurements of an instability in Taylor-Sedov blast waves propagating through a uniform background gas. The instability occurs when the adiabatic index of the background gas is low. Images of the expanding blast waves are dark field shadowgraphs obtained using a frequency-doubled (527 nm) pulsed YAG laser and black and white photographic film. The film images are digitized, and image processing routines are used for analysis and presentation.
ISSN:	0093-3813 1939-9375
DOI:	10.1109/27.491678