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Polynomial Chaos Methods for Hyperbolic Partial Differential EquationsA Hybrid Scheme for Two-Phase Flow

Polynomial Chaos Methods for Hyperbolic Partial Differential Equations: A Hybrid Scheme for... [In this chapter, we investigate a two-phase flow generalization of the Euler equations. A symmetrized problem formulation that generalizes previous energy estimates in for the Euler equations is used for the stochastic Galerkin system. The solution is expected to develop non-smooth features that are localized in space. Consequently, we adapt the numerical method to the smoothness of the solution. Finite-difference operators in summation-by-parts (SBP) form are used for the high-order spatial discretization, and the HLL-flux and MUSCL reconstruction are employed for shock-capturing in the non-smooth region. The coupling between the different solution regions is performed with a weak imposition of the interface conditions through an interface using a penalty technique.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Polynomial Chaos Methods for Hyperbolic Partial Differential EquationsA Hybrid Scheme for Two-Phase Flow

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References (24)

Publisher
Springer International Publishing
Copyright
© Springer International Publishing Switzerland 2015
ISBN
978-3-319-10713-4
Pages
149 –172
DOI
10.1007/978-3-319-10714-1_9
Publisher site
See Chapter on Publisher Site

Abstract

[In this chapter, we investigate a two-phase flow generalization of the Euler equations. A symmetrized problem formulation that generalizes previous energy estimates in for the Euler equations is used for the stochastic Galerkin system. The solution is expected to develop non-smooth features that are localized in space. Consequently, we adapt the numerical method to the smoothness of the solution. Finite-difference operators in summation-by-parts (SBP) form are used for the high-order spatial discretization, and the HLL-flux and MUSCL reconstruction are employed for shock-capturing in the non-smooth region. The coupling between the different solution regions is performed with a weak imposition of the interface conditions through an interface using a penalty technique.]

Published: Sep 17, 2014

Keywords: Euler Equation; Hybrid Scheme; Deterministic Problem; Stochastic Mode; Stochastic Collocation

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