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Title: Volume change and energy exchange: How they affect symmetry in the Noh problem

Abstract

The edge viscosity of Caramana, Shashkov and Whalen is known to fail on the Noh problem in an initially rectangular grid. In this paper, we present a simple change that significantly improves the behavior in that case. We also show that added energy exchange between cells improves the symmetry of both edge viscosity and the tensor viscosity of Campbell and Shashkov. Finally, as suggested by Noh, this addition also reduces the wall heating effect.

Authors:
ORCiD logo [1];  [2]
  1. Czech Technical Univ. in Prague (Czech Republic). Faculty of Nuclear Sciences and Physical Engineering
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); Czech Science Foundation; Czech Ministry of Education
OSTI Identifier:
1430010
Alternate Identifier(s):
OSTI ID: 1548547
Report Number(s):
LA-UR-17-29800
Journal ID: ISSN 0021-9991; TRN: US1802490
Grant/Contract Number:  
AC52-06NA25396; 18-20962S; RVO 68407700
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Computational Physics
Additional Journal Information:
Journal Volume: 364; Journal ID: ISSN 0021-9991
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Noh; edge viscosity; rectangular grid; energy exchange

Citation Formats

Vachal, Pavel, and Wendroff, Burton. Volume change and energy exchange: How they affect symmetry in the Noh problem. United States: N. p., 2018. Web. doi:10.1016/j.jcp.2018.03.021.
Vachal, Pavel, & Wendroff, Burton. Volume change and energy exchange: How they affect symmetry in the Noh problem. United States. https://doi.org/10.1016/j.jcp.2018.03.021
Vachal, Pavel, and Wendroff, Burton. Wed . "Volume change and energy exchange: How they affect symmetry in the Noh problem". United States. https://doi.org/10.1016/j.jcp.2018.03.021. https://www.osti.gov/servlets/purl/1430010.
@article{osti_1430010,
title = {Volume change and energy exchange: How they affect symmetry in the Noh problem},
author = {Vachal, Pavel and Wendroff, Burton},
abstractNote = {The edge viscosity of Caramana, Shashkov and Whalen is known to fail on the Noh problem in an initially rectangular grid. In this paper, we present a simple change that significantly improves the behavior in that case. We also show that added energy exchange between cells improves the symmetry of both edge viscosity and the tensor viscosity of Campbell and Shashkov. Finally, as suggested by Noh, this addition also reduces the wall heating effect.},
doi = {10.1016/j.jcp.2018.03.021},
journal = {Journal of Computational Physics},
number = ,
volume = 364,
place = {United States},
year = {Wed Mar 14 00:00:00 EDT 2018},
month = {Wed Mar 14 00:00:00 EDT 2018}
}

Journal Article:

Figures / Tables:

Figure 1 Figure 1: Color maps and scatter plots of Noh test at final time 0.6 with merit factor 0.1 and default limiters: Top row, original CSW; middle row, modified CSW; bottom row, CS tensor viscosity.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.