Some upwind formulations promote severe instabilities that originate in the numerical capturing of shocks; this is known as the "carbuncle" phenomenon. An analysis of the linearized form of the algorithms is carried out to explain and predict the generation of such instabilities. The information obt
Shock wave numerical structure and the carbuncle phenomenon
β Scribed by Y. Chauvat; J.-M. Moschetta; J. Gressier
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 498 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0271-2091
- DOI
- 10.1002/fld.916
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β¦ Synopsis
Abstract
Since the development of shockβcapturing methods, the carbuncle phenomenon has been reported to be a spurious solution produced by almost all currently available contactβpreserving methods. The present analysis indicates that the onset of carbuncle phenomenon is actually strongly related to the shock wave numerical structure. A matrixβbased stability analysis as well as Euler finite volume computations are compared to illustrate the importance of the internal shock structure to trigger the carbuncle phenomenon. Copyright Β© 2005 John Wiley & Sons, Ltd.
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