Two-dimensional implosion simulations with a kinetic particle code [2D implosion simulations with a kinetic particle code]
Abstract
Here, we perform two-dimensional implosion simulations using a Monte Carlo kinetic particle code. The application of a kinetic transport code is motivated, in part, by the occurrence of nonequilibrium effects in inertial confinement fusion capsule implosions, which cannot be fully captured by hydrodynamic simulations. Kinetic methods, on the other hand, are able to describe both continuum and rarefied flows. We perform simple two-dimensional disk implosion simulations using one-particle species and compare the results to simulations with the hydrodynamics code rage. The impact of the particle mean free path on the implosion is also explored. In a second study, we focus on the formation of fluid instabilities from induced perturbations. We find good agreement with hydrodynamic studies regarding the location of the shock and the implosion dynamics. Differences are found in the evolution of fluid instabilities, originating from the higher resolution of rage and statistical noise in the kinetic studies.
- Authors:
-
[1];
[2];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Southern Utah Univ., Cedar City, UT (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1358163
- Alternate Identifier(s):
- OSTI ID: 1357706
- Report Number(s):
- LA-UR-16-27386
Journal ID: ISSN 2470-0045; PLEEE8
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review E
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 2470-0045
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Sagert, Irina, Even, Wesley Paul, and Strother, Terrance Timothy. Two-dimensional implosion simulations with a kinetic particle code [2D implosion simulations with a kinetic particle code]. United States: N. p., 2017.
Web. doi:10.1103/PhysRevE.95.053206.
Sagert, Irina, Even, Wesley Paul, & Strother, Terrance Timothy. Two-dimensional implosion simulations with a kinetic particle code [2D implosion simulations with a kinetic particle code]. United States. https://doi.org/10.1103/PhysRevE.95.053206
Sagert, Irina, Even, Wesley Paul, and Strother, Terrance Timothy. Wed .
"Two-dimensional implosion simulations with a kinetic particle code [2D implosion simulations with a kinetic particle code]". United States. https://doi.org/10.1103/PhysRevE.95.053206. https://www.osti.gov/servlets/purl/1358163.
@article{osti_1358163,
title = {Two-dimensional implosion simulations with a kinetic particle code [2D implosion simulations with a kinetic particle code]},
author = {Sagert, Irina and Even, Wesley Paul and Strother, Terrance Timothy},
abstractNote = {Here, we perform two-dimensional implosion simulations using a Monte Carlo kinetic particle code. The application of a kinetic transport code is motivated, in part, by the occurrence of nonequilibrium effects in inertial confinement fusion capsule implosions, which cannot be fully captured by hydrodynamic simulations. Kinetic methods, on the other hand, are able to describe both continuum and rarefied flows. We perform simple two-dimensional disk implosion simulations using one-particle species and compare the results to simulations with the hydrodynamics code rage. The impact of the particle mean free path on the implosion is also explored. In a second study, we focus on the formation of fluid instabilities from induced perturbations. We find good agreement with hydrodynamic studies regarding the location of the shock and the implosion dynamics. Differences are found in the evolution of fluid instabilities, originating from the higher resolution of rage and statistical noise in the kinetic studies.},
doi = {10.1103/PhysRevE.95.053206},
journal = {Physical Review E},
number = 5,
volume = 95,
place = {United States},
year = {Wed May 17 00:00:00 EDT 2017},
month = {Wed May 17 00:00:00 EDT 2017}
}
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