Hyperbolic stochastic Galerkin formulation for the p-system
Hyperbolic stochastic Galerkin formulation for the p-system
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DOI:
10.1016/j.jcp.2019.05.049
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发表时间:
2019-10
期刊:
影响因子:
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通讯作者:
Stephan Gerster;M. Herty;Aleksey Sikstel
中科院分区:
文献类型:
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作者:
Stephan Gerster;M. Herty;Aleksey Sikstel
We analyze properties of stochastic hyperbolic systems using a Galerkin formulation, which reformulates the stochastic system as a deterministic one that describes the evolution of polynomial chaos modes. We investigate conditions such that the resulting systems are hyperbolic. We state the eigendecompositions in closed form. A Roe flux is presented and theoretical results are illustrated numerically.