Abstract
Burgers’ equation is an interesting and non-linear model problem from which, many results can be extended to other hyperbolic systems, e.g., the Euler equations. In this chapter, a detailed uncertainty quantification analysis is performed for the Burgers’ equation; we employ a spectral representation of the solution in the form of polynomial chaos expansion. The equation is stochastic as a result of the uncertainty in the initial and boundary values. Galerkin projection results in a coupled, deterministic system of hyperbolic equations from which statistics of the solution can be determined. A well-posed stochastic Galerkin formulation is presented and a strongly stable numerical scheme is devised. The effect of missing data is investigated, in terms of both stability of the numerical scheme and accuracy of the numerical solution.
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Pettersson, M.P., Iaccarino, G., Nordström, J. (2015). Nonlinear Transport Under Uncertainty. In: Polynomial Chaos Methods for Hyperbolic Partial Differential Equations. Mathematical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-10714-1_6
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DOI: https://doi.org/10.1007/978-3-319-10714-1_6
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