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2017 | OriginalPaper | Chapter

Stationarity and Vorticity Preservation for the Linearized Euler Equations in Multiple Spatial Dimensions

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Abstract

Stationary solutions are a prominent subset of solutions to hyperbolic systems of PDEs. Failure of numerical methods to maintain stationarity is easily visible which makes these solutions an important class. Consider finite volume schemes solving multi-d linearized Euler equations on equidistant Cartesian grids. We formulate conditions for a scheme to have stationary states that are discretizations of all analytic stationary states. Such schemes are termed stationarity preserving. Stationarity preservation for the linearized Euler equations is shown to be equivalent to vorticity preservation.

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Footnotes
1
p and \(\mathbf {v}\) will be called pressure and velocity, though, strictly speaking, when compared to (5)–(7) there is a factor of \(\bar{\rho }\), and thus a unit of mass missing.
 
2
Note that in this paper indices never denote derivatives.
 
3
All such statements are understood “up to machine error”.
 
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Metadata
Title
Stationarity and Vorticity Preservation for the Linearized Euler Equations in Multiple Spatial Dimensions
Author
Wasilij Barsukow
Copyright Year
2017
DOI
https://doi.org/10.1007/978-3-319-57397-7_38

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