Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session GO4: Opacity, X-ray Spectroscopy and Radiation Shocks and Flow
9:30 AM–12:30 PM,
Tuesday, November 6, 2018
OCC Room: B110-112
Chair: Marilyn Schneider, Lawrence Livermore National Lab
Abstract ID: BAPS.2018.DPP.GO4.7
Abstract: GO4.00007 : The key to understanding Supersonic Radiative Marshak waves using Simple Models and Advanced Simulations*
10:42 AM–10:54 AM
Radiative heat (Marshak) waves play important roles in many high energy density physics phenomena, for example in inertial confinement fusion (ICF) and in astrophysical and laboratory plasmas. In recent decades, several experiments of supersonic Marshak waves propagating through low-density foams were reported, for example in [1-4]. The theoretical understanding of these complicated systems is still incomplete. We analyzed different experiments, carried out in different experimental set ups. In this work we integrate several methods that analyze the experiments. First, we show a simple analytic model that grasps the main physical effects . Nevertheless, we use heavy exact 2D IMC and SN hydro-dynamic simulations, for more accurate results in every experiment. Although the experiments were carried out in extremely different circumstances, we show they share a lot in common. Finally, we show a new approximation , yields very similar results to the exact.
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*The PAZY Foundation under Grant No. 61139927.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.GO4.7
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