Three-dimensional design simulations of a high energy density re-shock experiment at the National Ignition Facility

[+] Author and Article Information
Ping Wang

Lawrence Livermore National Laboratory

Kumar Raman

Lawrence Livermore National Laboratory

Stephan A. MacLaren

Lawrence Livermore National Laboratory

Channing M. Huntington

Lawrence Livermore National Laboratory

Sabrina R. Nagel

Lawrence Livermore National Laboratory

Kirk A Flippo

Los Alamos National Laboratory

Shon T Prisbrey

Lawrence Livermore National Laboratory

1Corresponding author.

ASME doi:10.1115/1.4038532 History: Received December 09, 2016; Revised September 28, 2017


We present simulations of a new experimental platform at the National Ignition Facility for studying the hydrodynamic instability growth of a high energy density fluid interface that undergoes multiple shocks, i.e. is "re-shocked". In these experiments, indirect-drive laser cavities drive strong shocks through an initially solid, planar interface between a high-density plastic and low-density foam, in either one or both directions. The first shock turns the system into an unstable fluid interface with the pre-machined initial condition that then grows via the Richtmyer-Meshkov and Rayleigh-Taylor instabilities. Backlit x-ray imaging is used to visualize the instability growth at different times. Our main result is that this new high energy density re-shock platform is established, and that the initial data confirm the experiment operates in a hydrodynamic regime similar to what simulations predict. The simulations also reveal new types of edge effects that can disturb the experiment at late times and suggest ways to mitigate them.

Section 3: U.S. Gov Contractors
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In