Volume change and energy exchange: How they affect symmetry in the Noh problem
Journal Article
·
· Journal of Computational Physics
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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); Czech Science Foundation; Czech Ministry of Education
- Grant/Contract Number:
- AC52-06NA25396; 18-20962S; RVO 68407700
- OSTI ID:
- 1430010
- Alternate ID(s):
- OSTI ID: 1548547
- Report Number(s):
- LA-UR-17-29800; TRN: US1802490
- Journal Information:
- Journal of Computational Physics, Vol. 364; ISSN 0021-9991
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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