Entropy controlled adaptive finite element simulations for compressible gas flow (Q1917121)

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scientific article; zbMATH DE number 896672
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Entropy controlled adaptive finite element simulations for compressible gas flow
scientific article; zbMATH DE number 896672

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    Entropy controlled adaptive finite element simulations for compressible gas flow (English)
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    6 January 1997
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    The principal idea consists in using the entropy balance equation in its discrete form as a rationale for controling an optimal amount of artificial dissipation in finite element compressible gas simulations. The entropy control can be reinterpreted as a nonlinear stability estimate in terms of the so-called modified entropy function. The idea has been practically verified using the Taylor-Galerkin method combined with an artificial viscosity term, in context of \(h\)-adaptive linear finite elements.
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    entropy balance equation in discrete form
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    artificial dissipation
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    nonlinear stability estimate
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    modified entropy function
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    Taylor-Galerkin method
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    artificial viscosity
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    \(h\)-adaptive linear finite elements
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