Heuristical and numerical considerations for the carbuncle phenomenon
classification
⚛️ physics.comp-ph
cs.NAmath.NA
keywords
carbunclenumericalconsiderationsphenomenonpositionshockcalleddescribe
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In this study, we investigate the so called carbuncle phenomenon by means of numerical experiments and heuristic considerations. We identify two main sources for the carbuncle: instability of the 1d shock position and low numerical viscosity on shear waves. We also describe how higher order stabilizes the 1d shock position and, thus, reduces the carbuncle.
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