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DOE OSTI · 2588042

Characterizing Artificial Viscosity Parameters with Approximate Symmetries

Pezanosky, Christopher Matthew [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Ramsey, Scott D. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000324837254)
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Abstract

We are often faced with trying to capture the physics of compressible shocks, which are governed by the Euler equations. However, Euler shocks are formally discontinuous at the shock front (translating to a step-function behavior of rel evant flow variables). This poses a practical problem for codes with finite-sized grid elements. As a result, one must make a concession in simulating the be havior of shocks within a discrete framework. In particular, we must blur, or ‘regularize’ Euler shocks so that they may be captured on a finite grid.

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BibTeXRIS

Pezanosky, Christopher Matthew [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Ramsey, Scott D. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000324837254). 2025-09-05. Characterizing Artificial Viscosity Parameters with Approximate Symmetries. https://doi.org/10.2172/2588042

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