Vortex shedding due to laser ablation

An investigation of laser‐driven targets shows the generation and subsequent shedding of strong vortex structures from the ablation layer whenever the density and pressure profiles become noncollinear. It is shown here that vortex shedding explains the inhibited linear Rayleigh–Taylor growth, the sh...

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Veröffentlicht in:	Phys. Fluids; (United States) 1984-05, Vol.27 (5), p.1338-1340
Hauptverfasser:	Emery, Mark H., Gardner, John H., Boris, Jay P., Cooper, Arnold L.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700107 - Fusion Energy- Plasma Research- Instabilities 700208 - Fusion Power Plant Technology- Inertial Confinement Technology ABLATION Exact sciences and technology INSTABILITY LASER-PRODUCED PLASMA Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges PLASMA PLASMA DENSITY PLASMA PRESSURE Plasma production and heating RAYLEIGH-TAYLOR INSTABILITY VORTICES
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Beschreibung
Zusammenfassung:	An investigation of laser‐driven targets shows the generation and subsequent shedding of strong vortex structures from the ablation layer whenever the density and pressure profiles become noncollinear. It is shown here that vortex shedding explains the inhibited linear Rayleigh–Taylor growth, the short‐wavelength cutoff, dynamic stabilization and clarifies the role of the Kelvin–Helmholtz roll‐up.
ISSN:	0031-9171 2163-4998
DOI:	10.1063/1.864749