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UID:UW-Physics-Event-6416
DTSTART:20210412T170000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T085520Z
LAST-MODIFIED:20210407T143627Z
LOCATION:Zoom Meeting
SUMMARY:Creating Astrophysically Relevant Systems in the Laboratory in
  the High-Energy-Density Regime\, Plasma Physics (Physics/ECE/NE 922) 
 Seminar\, Prof. Carolyn Kuranz\, University of Michigan
DESCRIPTION:High-energy-density experiments can provide insight into a
 strophysical processes\, which are often observed from great distances
  under uncontrolled and unknown conditions.  In order for an experimen
 t to be well-scaled to an astrophysical process\, several specific con
 ditions must be considered\, including key governing equations\, speci
 fic spatial scaling\, and similar global dynamics. In many cases\, the
 se conditions can be met using high-energy-density experimental facili
 ties\, such as\, high-energy laser or pulsed power devices. I will dis
 cuss general scaling rules and several astrophysically-relevant high-e
 nergy-density physics experiments\, specifically an experiment conduct
 ed at the National Ignition Facility relevant to core-collapse superno
 va SN1993J\, a red supergiant\, where a radiative shock is near a hydr
 odynamically unstable interface. We found that significant energy flux
 es from radiation and thermal heat conduction affect the hydrodynamics
  structure at the interface. In the experiments\, a blast wave structu
 re similar to those in supernovae is created in a plastic layer.  The 
 blast wave crosses a three-dimensional interface that produces unstabl
 e growth dominated by the Rayleigh-Taylor instability. We have detecte
 d the evolution of the interface structure under these conditions and 
 will show the resulting experimental and simulation data.<br>
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URL:https://www.physics.wisc.edu/events/?id=6416
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